Combine session related classes

257 files changed, 260 insertions, 257 deletions

diff --git a/src/main/java/org/traccar/BaseProtocolDecoder.java b/src/main/java/org/traccar/BaseProtocolDecoder.java
index 9a396bd64..3fc6e7697 100644
--- a/src/main/java/org/traccar/BaseProtocolDecoder.java
+++ b/src/main/java/org/traccar/BaseProtocolDecoder.java
@@ -25,7 +25,7 @@ import org.slf4j.LoggerFactory;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.database.CommandsManager;
-import org.traccar.database.ConnectionManager;
+import org.traccar.session.ConnectionManager;
 import org.traccar.database.IdentityManager;
 import org.traccar.database.MediaManager;
 import org.traccar.database.StatisticsManager;
@@ -33,6 +33,7 @@ import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Command;
 import org.traccar.model.Device;
 import org.traccar.model.Position;
+import org.traccar.session.DeviceSession;
 
 import java.net.InetSocketAddress;
 import java.net.SocketAddress;
diff --git a/src/main/java/org/traccar/Context.java b/src/main/java/org/traccar/Context.java
index 237a34624..1faa4c9de 100644
--- a/src/main/java/org/traccar/Context.java
+++ b/src/main/java/org/traccar/Context.java
@@ -27,7 +27,7 @@ import org.traccar.database.AttributesManager;
 import org.traccar.database.BaseObjectManager;
 import org.traccar.database.CalendarManager;
 import org.traccar.database.CommandsManager;
-import org.traccar.database.ConnectionManager;
+import org.traccar.session.ConnectionManager;
 import org.traccar.database.DataManager;
 import org.traccar.database.DeviceManager;
 import org.traccar.database.DriversManager;
diff --git a/src/main/java/org/traccar/MainModule.java b/src/main/java/org/traccar/MainModule.java
index 60b5854fd..43ca3ba77 100644
--- a/src/main/java/org/traccar/MainModule.java
+++ b/src/main/java/org/traccar/MainModule.java
@@ -26,7 +26,7 @@ import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.database.AttributesManager;
 import org.traccar.database.CalendarManager;
-import org.traccar.database.ConnectionManager;
+import org.traccar.session.ConnectionManager;
 import org.traccar.database.DataManager;
 import org.traccar.database.DeviceManager;
 import org.traccar.database.GeofenceManager;
diff --git a/src/main/java/org/traccar/api/AsyncSocket.java b/src/main/java/org/traccar/api/AsyncSocket.java
index b1853822d..b5902c4fb 100644
--- a/src/main/java/org/traccar/api/AsyncSocket.java
+++ b/src/main/java/org/traccar/api/AsyncSocket.java
@@ -21,7 +21,7 @@ import org.eclipse.jetty.websocket.api.WebSocketAdapter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.Context;
-import org.traccar.database.ConnectionManager;
+import org.traccar.session.ConnectionManager;
 import org.traccar.model.Device;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/database/CommandsManager.java b/src/main/java/org/traccar/database/CommandsManager.java
index 843c89e82..3adf5d2e9 100644
--- a/src/main/java/org/traccar/database/CommandsManager.java
+++ b/src/main/java/org/traccar/database/CommandsManager.java
@@ -34,6 +34,7 @@ import org.traccar.Context;
 import org.traccar.model.Command;
 import org.traccar.model.Typed;
 import org.traccar.model.Position;
+import org.traccar.session.ActiveDevice;
 
 public class CommandsManager  extends ExtendedObjectManager<Command> {
 
diff --git a/src/main/java/org/traccar/database/DeviceManager.java b/src/main/java/org/traccar/database/DeviceManager.java
index a14fd7022..3b500aba9 100644
--- a/src/main/java/org/traccar/database/DeviceManager.java
+++ b/src/main/java/org/traccar/database/DeviceManager.java
@@ -31,7 +31,7 @@ import org.traccar.Context;
 import org.traccar.config.Keys;
 import org.traccar.model.Command;
 import org.traccar.model.Device;
-import org.traccar.model.DeviceState;
+import org.traccar.session.DeviceState;
 import org.traccar.model.DeviceAccumulators;
 import org.traccar.model.Group;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/handler/events/GeofenceEventHandler.java b/src/main/java/org/traccar/handler/events/GeofenceEventHandler.java
index 36df7aaf3..c7dcf3f59 100644
--- a/src/main/java/org/traccar/handler/events/GeofenceEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/GeofenceEventHandler.java
@@ -22,7 +22,7 @@ import java.util.Map;
 
 import io.netty.channel.ChannelHandler;
 import org.traccar.database.CalendarManager;
-import org.traccar.database.ConnectionManager;
+import org.traccar.session.ConnectionManager;
 import org.traccar.database.GeofenceManager;
 import org.traccar.database.IdentityManager;
 import org.traccar.model.Calendar;
diff --git a/src/main/java/org/traccar/handler/events/MotionEventHandler.java b/src/main/java/org/traccar/handler/events/MotionEventHandler.java
index 23a39d070..e27faf9ce 100644
--- a/src/main/java/org/traccar/handler/events/MotionEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/MotionEventHandler.java
@@ -23,7 +23,7 @@ import io.netty.channel.ChannelHandler;
 import org.traccar.database.DeviceManager;
 import org.traccar.database.IdentityManager;
 import org.traccar.model.Device;
-import org.traccar.model.DeviceState;
+import org.traccar.session.DeviceState;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
 import org.traccar.reports.ReportUtils;
diff --git a/src/main/java/org/traccar/handler/events/OverspeedEventHandler.java b/src/main/java/org/traccar/handler/events/OverspeedEventHandler.java
index 102003c3c..84d80e55f 100644
--- a/src/main/java/org/traccar/handler/events/OverspeedEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/OverspeedEventHandler.java
@@ -25,7 +25,7 @@ import org.traccar.config.Keys;
 import org.traccar.database.DeviceManager;
 import org.traccar.database.GeofenceManager;
 import org.traccar.model.Device;
-import org.traccar.model.DeviceState;
+import org.traccar.session.DeviceState;
 import org.traccar.model.Event;
 import org.traccar.model.Geofence;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/AdmProtocolDecoder.java b/src/main/java/org/traccar/protocol/AdmProtocolDecoder.java
index 7e3478704..1f940f7e2 100644
--- a/src/main/java/org/traccar/protocol/AdmProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AdmProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/AisProtocolDecoder.java b/src/main/java/org/traccar/protocol/AisProtocolDecoder.java
index 8970f3d4a..a434e6e33 100644
--- a/src/main/java/org/traccar/protocol/AisProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AisProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitBuffer;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/AlematicsProtocolDecoder.java b/src/main/java/org/traccar/protocol/AlematicsProtocolDecoder.java
index 25ccf6856..981437191 100644
--- a/src/main/java/org/traccar/protocol/AlematicsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AlematicsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/AnytrekProtocolDecoder.java b/src/main/java/org/traccar/protocol/AnytrekProtocolDecoder.java
index c48f59c90..0f9c2b17a 100644
--- a/src/main/java/org/traccar/protocol/AnytrekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AnytrekProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/ApelProtocolDecoder.java b/src/main/java/org/traccar/protocol/ApelProtocolDecoder.java
index c95a0366a..97ed7de96 100644
--- a/src/main/java/org/traccar/protocol/ApelProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ApelProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/AplicomProtocolDecoder.java b/src/main/java/org/traccar/protocol/AplicomProtocolDecoder.java
index 692a2058a..0cd8ca37e 100644
--- a/src/main/java/org/traccar/protocol/AplicomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AplicomProtocolDecoder.java
@@ -21,7 +21,7 @@ import io.netty.channel.Channel;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/AppelloProtocolDecoder.java b/src/main/java/org/traccar/protocol/AppelloProtocolDecoder.java
index 47e329234..8e182b9fb 100644
--- a/src/main/java/org/traccar/protocol/AppelloProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AppelloProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/AquilaProtocolDecoder.java b/src/main/java/org/traccar/protocol/AquilaProtocolDecoder.java
index 3c43ddf2a..50ff10469 100644
--- a/src/main/java/org/traccar/protocol/AquilaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AquilaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Ardi01ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Ardi01ProtocolDecoder.java
index 85e9ecfde..07653623a 100644
--- a/src/main/java/org/traccar/protocol/Ardi01ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Ardi01ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/ArknavProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArknavProtocolDecoder.java
index 4982e02fc..4def9c979 100644
--- a/src/main/java/org/traccar/protocol/ArknavProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArknavProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/ArknavX8ProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArknavX8ProtocolDecoder.java
index b570f5423..22c0344d6 100644
--- a/src/main/java/org/traccar/protocol/ArknavX8ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArknavX8ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/ArmoliProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArmoliProtocolDecoder.java
index 50af039d6..cbed64f76 100644
--- a/src/main/java/org/traccar/protocol/ArmoliProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArmoliProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.ObdDecoder;
diff --git a/src/main/java/org/traccar/protocol/ArnaviBinaryProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArnaviBinaryProtocolDecoder.java
index e957a6911..0f6b7a33f 100644
--- a/src/main/java/org/traccar/protocol/ArnaviBinaryProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArnaviBinaryProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/ArnaviTextProtocolDecoder.java b/src/main/java/org/traccar/protocol/ArnaviTextProtocolDecoder.java
index b99869e6e..9d82c9ad5 100644
--- a/src/main/java/org/traccar/protocol/ArnaviTextProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ArnaviTextProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java b/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java
index e6f546b9f..366bf9e8b 100644
--- a/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java
@@ -21,7 +21,7 @@ import io.netty.channel.Channel;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/At2000ProtocolDecoder.java b/src/main/java/org/traccar/protocol/At2000ProtocolDecoder.java
index 43798eb67..b81ba306d 100644
--- a/src/main/java/org/traccar/protocol/At2000ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/At2000ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
diff --git a/src/main/java/org/traccar/protocol/AtrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/AtrackProtocolDecoder.java
index 9a5d537ef..4567582db 100644
--- a/src/main/java/org/traccar/protocol/AtrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AtrackProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
diff --git a/src/main/java/org/traccar/protocol/AuroProtocolDecoder.java b/src/main/java/org/traccar/protocol/AuroProtocolDecoder.java
index d7916147b..4489cf27e 100644
--- a/src/main/java/org/traccar/protocol/AuroProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AuroProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/AustinNbProtocolDecoder.java b/src/main/java/org/traccar/protocol/AustinNbProtocolDecoder.java
index dc6f3d280..92dae7285 100644
--- a/src/main/java/org/traccar/protocol/AustinNbProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AustinNbProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java b/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java
index aa05ca2d7..dd6a0e33c 100644
--- a/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AutoFonProtocolDecoder.java
@@ -21,7 +21,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/AutoGradeProtocolDecoder.java b/src/main/java/org/traccar/protocol/AutoGradeProtocolDecoder.java
index 5052450b5..f52ac81c9 100644
--- a/src/main/java/org/traccar/protocol/AutoGradeProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AutoGradeProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java
index da7f6b5a6..c072e55d0 100644
--- a/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AutoTrackProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/AvemaProtocolDecoder.java b/src/main/java/org/traccar/protocol/AvemaProtocolDecoder.java
index 37836ad5f..0793975df 100644
--- a/src/main/java/org/traccar/protocol/AvemaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/AvemaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Avl301ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Avl301ProtocolDecoder.java
index 9f6ded26a..8f036fc29 100644
--- a/src/main/java/org/traccar/protocol/Avl301ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Avl301ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/B2316ProtocolDecoder.java b/src/main/java/org/traccar/protocol/B2316ProtocolDecoder.java
index 854107a20..a45c315b3 100644
--- a/src/main/java/org/traccar/protocol/B2316ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/B2316ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
diff --git a/src/main/java/org/traccar/protocol/BceProtocolDecoder.java b/src/main/java/org/traccar/protocol/BceProtocolDecoder.java
index 535827f3c..2c9459584 100644
--- a/src/main/java/org/traccar/protocol/BceProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/BceProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/BlackKiteProtocolDecoder.java b/src/main/java/org/traccar/protocol/BlackKiteProtocolDecoder.java
index 474ceabdc..64fc439c4 100644
--- a/src/main/java/org/traccar/protocol/BlackKiteProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/BlackKiteProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java b/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java
index f35ac6fbe..db59c564d 100644
--- a/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/BlueProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java b/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java
index 853fa8f81..8e92b69fb 100644
--- a/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/C2stekProtocolDecoder.java b/src/main/java/org/traccar/protocol/C2stekProtocolDecoder.java
index e735c67a1..42a61ef85 100644
--- a/src/main/java/org/traccar/protocol/C2stekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/C2stekProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/CalAmpProtocolDecoder.java b/src/main/java/org/traccar/protocol/CalAmpProtocolDecoder.java
index 59b1fdf21..57f9c69ae 100644
--- a/src/main/java/org/traccar/protocol/CalAmpProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CalAmpProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java
index ce3345826..3f5418549 100644
--- a/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CarTrackProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/CarcellProtocolDecoder.java b/src/main/java/org/traccar/protocol/CarcellProtocolDecoder.java
index ec640ba71..54ae068fb 100644
--- a/src/main/java/org/traccar/protocol/CarcellProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CarcellProtocolDecoder.java
@@ -20,7 +20,7 @@ import java.util.regex.Pattern;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.Parser.CoordinateFormat;
diff --git a/src/main/java/org/traccar/protocol/CarscopProtocolDecoder.java b/src/main/java/org/traccar/protocol/CarscopProtocolDecoder.java
index 161666adc..f13a1d0eb 100644
--- a/src/main/java/org/traccar/protocol/CarscopProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CarscopProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/CastelProtocolDecoder.java b/src/main/java/org/traccar/protocol/CastelProtocolDecoder.java
index 85ac29336..c2b740c4c 100644
--- a/src/main/java/org/traccar/protocol/CastelProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CastelProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/CautelaProtocolDecoder.java b/src/main/java/org/traccar/protocol/CautelaProtocolDecoder.java
index bddf19b41..37f733ac1 100644
--- a/src/main/java/org/traccar/protocol/CautelaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CautelaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/CellocatorProtocolDecoder.java b/src/main/java/org/traccar/protocol/CellocatorProtocolDecoder.java
index 09bd3572f..ecd09a2d8 100644
--- a/src/main/java/org/traccar/protocol/CellocatorProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CellocatorProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/CguardProtocolDecoder.java b/src/main/java/org/traccar/protocol/CguardProtocolDecoder.java
index d934921f1..90f8e0caf 100644
--- a/src/main/java/org/traccar/protocol/CguardProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CguardProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java b/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java
index 9c4c7e11d..1b5eb55d4 100644
--- a/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CityeasyProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/ContinentalProtocolDecoder.java b/src/main/java/org/traccar/protocol/ContinentalProtocolDecoder.java
index 471afa0d6..280871e1e 100644
--- a/src/main/java/org/traccar/protocol/ContinentalProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ContinentalProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/CradlepointProtocolDecoder.java b/src/main/java/org/traccar/protocol/CradlepointProtocolDecoder.java
index a282131ce..924603291 100644
--- a/src/main/java/org/traccar/protocol/CradlepointProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/CradlepointProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java b/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java
index 98fe4b7b3..580741ec9 100644
--- a/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DingtekProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/DishaProtocolDecoder.java b/src/main/java/org/traccar/protocol/DishaProtocolDecoder.java
index 3223988ab..1327e7a6c 100644
--- a/src/main/java/org/traccar/protocol/DishaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DishaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/DmtHttpProtocolDecoder.java b/src/main/java/org/traccar/protocol/DmtHttpProtocolDecoder.java
index 815cce987..807850778 100644
--- a/src/main/java/org/traccar/protocol/DmtHttpProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DmtHttpProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/DmtProtocolDecoder.java b/src/main/java/org/traccar/protocol/DmtProtocolDecoder.java
index 96b06557a..0fd83f503 100644
--- a/src/main/java/org/traccar/protocol/DmtProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DmtProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/DolphinProtocolDecoder.java b/src/main/java/org/traccar/protocol/DolphinProtocolDecoder.java
index d509b3ec0..b43635a52 100644
--- a/src/main/java/org/traccar/protocol/DolphinProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DolphinProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/Dsf22ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Dsf22ProtocolDecoder.java
index 3ef960f12..124bbfefa 100644
--- a/src/main/java/org/traccar/protocol/Dsf22ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Dsf22ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java b/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java
index 3c15d41eb..c5835bc7d 100644
--- a/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DualcamProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/DwayProtocolDecoder.java b/src/main/java/org/traccar/protocol/DwayProtocolDecoder.java
index 9b02c898e..9cf40b011 100644
--- a/src/main/java/org/traccar/protocol/DwayProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/DwayProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/EasyTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/EasyTrackProtocolDecoder.java
index 4fcc48944..805cf1197 100644
--- a/src/main/java/org/traccar/protocol/EasyTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EasyTrackProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java b/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java
index 592e5a56c..f6b5720da 100644
--- a/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EelinkProtocolDecoder.java
@@ -21,7 +21,7 @@ import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import io.netty.channel.socket.DatagramChannel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/EgtsProtocolDecoder.java b/src/main/java/org/traccar/protocol/EgtsProtocolDecoder.java
index e65ddb0ef..3a6af60a1 100644
--- a/src/main/java/org/traccar/protocol/EgtsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EgtsProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java b/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java
index bfa7a116b..dd1c8017b 100644
--- a/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BufferUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/EnnfuProtocolDecoder.java b/src/main/java/org/traccar/protocol/EnnfuProtocolDecoder.java
index 792ed1098..2198938e2 100644
--- a/src/main/java/org/traccar/protocol/EnnfuProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EnnfuProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/EnvotechProtocolDecoder.java b/src/main/java/org/traccar/protocol/EnvotechProtocolDecoder.java
index 65d5e3859..750ff2bda 100644
--- a/src/main/java/org/traccar/protocol/EnvotechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EnvotechProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/EsealProtocolDecoder.java b/src/main/java/org/traccar/protocol/EsealProtocolDecoder.java
index 27fcf1394..dd15c4276 100644
--- a/src/main/java/org/traccar/protocol/EsealProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EsealProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
diff --git a/src/main/java/org/traccar/protocol/EskyProtocolDecoder.java b/src/main/java/org/traccar/protocol/EskyProtocolDecoder.java
index 14b4376d5..4239022d0 100644
--- a/src/main/java/org/traccar/protocol/EskyProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/EskyProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.channel.Channel;
 import io.netty.channel.socket.DatagramChannel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/ExtremTracProtocolDecoder.java b/src/main/java/org/traccar/protocol/ExtremTracProtocolDecoder.java
index 9fde6f0a0..706c70825 100644
--- a/src/main/java/org/traccar/protocol/ExtremTracProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ExtremTracProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/FifotrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/FifotrackProtocolDecoder.java
index 53f35c3cd..741f4b35a 100644
--- a/src/main/java/org/traccar/protocol/FifotrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FifotrackProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/FlespiProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlespiProtocolDecoder.java
index 281a8a84f..6e6f9c700 100644
--- a/src/main/java/org/traccar/protocol/FlespiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlespiProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/FlexApiProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlexApiProtocolDecoder.java
index bcfbdd7da..2dec44e64 100644
--- a/src/main/java/org/traccar/protocol/FlexApiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlexApiProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.CellTower;
 import org.traccar.model.Network;
diff --git a/src/main/java/org/traccar/protocol/FlexCommProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlexCommProtocolDecoder.java
index 068c0a05c..0d8bd9373 100644
--- a/src/main/java/org/traccar/protocol/FlexCommProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlexCommProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/FlexibleReportProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlexibleReportProtocolDecoder.java
index 759f2cd6f..9fcee1aeb 100644
--- a/src/main/java/org/traccar/protocol/FlexibleReportProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlexibleReportProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java
index 9dce22ede..a0dac1c41 100644
--- a/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FlextrackProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/FoxProtocolDecoder.java b/src/main/java/org/traccar/protocol/FoxProtocolDecoder.java
index 449f00022..6dd0b0e95 100644
--- a/src/main/java/org/traccar/protocol/FoxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FoxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/FreedomProtocolDecoder.java b/src/main/java/org/traccar/protocol/FreedomProtocolDecoder.java
index 1d2dd3133..27dda1a6d 100644
--- a/src/main/java/org/traccar/protocol/FreedomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FreedomProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/FreematicsProtocolDecoder.java b/src/main/java/org/traccar/protocol/FreematicsProtocolDecoder.java
index aded35823..4e5200f37 100644
--- a/src/main/java/org/traccar/protocol/FreematicsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FreematicsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/FutureWayProtocolDecoder.java b/src/main/java/org/traccar/protocol/FutureWayProtocolDecoder.java
index c2f3781d9..57027b080 100644
--- a/src/main/java/org/traccar/protocol/FutureWayProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FutureWayProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
index 4c6d915d5..a2ba7b029 100644
--- a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java b/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java
index 087861635..644caee81 100644
--- a/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GatorProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/GenxProtocolDecoder.java b/src/main/java/org/traccar/protocol/GenxProtocolDecoder.java
index b787b7467..6448b6a5a 100644
--- a/src/main/java/org/traccar/protocol/GenxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GenxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java
index ae0383e5c..789d87dad 100644
--- a/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gl100ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/Gl200BinaryProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gl200BinaryProtocolDecoder.java
index c3339bea5..ecd1f5bfa 100644
--- a/src/main/java/org/traccar/protocol/Gl200BinaryProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gl200BinaryProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitBuffer;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Gl200TextProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gl200TextProtocolDecoder.java
index 72d3ef592..ebd58ed5c 100644
--- a/src/main/java/org/traccar/protocol/Gl200TextProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gl200TextProtocolDecoder.java
@@ -16,7 +16,7 @@
 package org.traccar.protocol;
 
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
diff --git a/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java b/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java
index d5c834284..720b61695 100644
--- a/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GlobalSatProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/GlobalstarProtocolDecoder.java b/src/main/java/org/traccar/protocol/GlobalstarProtocolDecoder.java
index b742d0cac..e537edf1d 100644
--- a/src/main/java/org/traccar/protocol/GlobalstarProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GlobalstarProtocolDecoder.java
@@ -27,7 +27,7 @@ import io.netty.handler.codec.http.HttpHeaderNames;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.HttpVersion;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/GnxProtocolDecoder.java b/src/main/java/org/traccar/protocol/GnxProtocolDecoder.java
index c9c221a69..9c8b6879a 100644
--- a/src/main/java/org/traccar/protocol/GnxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GnxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/GoSafeProtocolDecoder.java b/src/main/java/org/traccar/protocol/GoSafeProtocolDecoder.java
index a86249224..77649a041 100644
--- a/src/main/java/org/traccar/protocol/GoSafeProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GoSafeProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/GotopProtocolDecoder.java b/src/main/java/org/traccar/protocol/GotopProtocolDecoder.java
index 0f8d29228..5c8d0bac2 100644
--- a/src/main/java/org/traccar/protocol/GotopProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GotopProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Gps056ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gps056ProtocolDecoder.java
index 0ba79bb51..eea64364e 100644
--- a/src/main/java/org/traccar/protocol/Gps056ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gps056ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java
index 510f5eca2..a2009e1b2 100644
--- a/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gps103ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
diff --git a/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java b/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
index c158d3212..82da58f1e 100644
--- a/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GpsGateProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/GpsMarkerProtocolDecoder.java b/src/main/java/org/traccar/protocol/GpsMarkerProtocolDecoder.java
index bbb2c31e2..0fef4b7da 100644
--- a/src/main/java/org/traccar/protocol/GpsMarkerProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GpsMarkerProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/GpsmtaProtocolDecoder.java b/src/main/java/org/traccar/protocol/GpsmtaProtocolDecoder.java
index 31f9401b4..a9b85d255 100644
--- a/src/main/java/org/traccar/protocol/GpsmtaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GpsmtaProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/GranitProtocolDecoder.java b/src/main/java/org/traccar/protocol/GranitProtocolDecoder.java
index 292e43a0e..dfc3c10f6 100644
--- a/src/main/java/org/traccar/protocol/GranitProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GranitProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Gs100ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gs100ProtocolDecoder.java
index 2496aad48..352070107 100644
--- a/src/main/java/org/traccar/protocol/Gs100ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gs100ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/Gt02ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt02ProtocolDecoder.java
index 78a3fd3ee..4ecb0b43b 100644
--- a/src/main/java/org/traccar/protocol/Gt02ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gt02ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
index 22f38a497..c200c6ba9 100644
--- a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java
index abf208a46..fb3a2b8ae 100644
--- a/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gt30ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java b/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java
index dcfb36fd1..2ad4f644b 100644
--- a/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/H02ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
diff --git a/src/main/java/org/traccar/protocol/HaicomProtocolDecoder.java b/src/main/java/org/traccar/protocol/HaicomProtocolDecoder.java
index dd20f2aeb..9903e7735 100644
--- a/src/main/java/org/traccar/protocol/HaicomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HaicomProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/HomtecsProtocolDecoder.java b/src/main/java/org/traccar/protocol/HomtecsProtocolDecoder.java
index a93572b5c..5541cb065 100644
--- a/src/main/java/org/traccar/protocol/HomtecsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HomtecsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/HoopoProtocolDecoder.java b/src/main/java/org/traccar/protocol/HoopoProtocolDecoder.java
index af51a99c6..708c74f2a 100644
--- a/src/main/java/org/traccar/protocol/HoopoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HoopoProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 
diff --git a/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java b/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java
index 891046213..371691d82 100644
--- a/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HuaShengProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java b/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java
index 84120028a..c75fd673a 100644
--- a/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HuabaoProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/HunterProProtocolDecoder.java b/src/main/java/org/traccar/protocol/HunterProProtocolDecoder.java
index 06bc12d59..eada1fd9a 100644
--- a/src/main/java/org/traccar/protocol/HunterProProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/HunterProProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/IdplProtocolDecoder.java b/src/main/java/org/traccar/protocol/IdplProtocolDecoder.java
index cf3c03d7f..72409b168 100644
--- a/src/main/java/org/traccar/protocol/IdplProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/IdplProtocolDecoder.java
@@ -20,7 +20,7 @@ import java.util.regex.Pattern;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.Parser.CoordinateFormat;
diff --git a/src/main/java/org/traccar/protocol/IntellitracProtocolDecoder.java b/src/main/java/org/traccar/protocol/IntellitracProtocolDecoder.java
index 930d4f23b..b86584016 100644
--- a/src/main/java/org/traccar/protocol/IntellitracProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/IntellitracProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/IotmProtocolDecoder.java b/src/main/java/org/traccar/protocol/IotmProtocolDecoder.java
index 9c94ffd4b..57e4c736f 100644
--- a/src/main/java/org/traccar/protocol/IotmProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/IotmProtocolDecoder.java
@@ -25,7 +25,7 @@ import io.netty.handler.codec.mqtt.MqttMessageBuilders;
 import io.netty.handler.codec.mqtt.MqttPublishMessage;
 import io.netty.handler.codec.mqtt.MqttSubscribeMessage;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java b/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java
index 9eed58347..1ed9a7d8c 100644
--- a/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ItsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/Ivt401ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Ivt401ProtocolDecoder.java
index 63556e7a9..972f22ebe 100644
--- a/src/main/java/org/traccar/protocol/Ivt401ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Ivt401ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/JidoProtocolDecoder.java b/src/main/java/org/traccar/protocol/JidoProtocolDecoder.java
index 40fa8864d..98fb36e11 100644
--- a/src/main/java/org/traccar/protocol/JidoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/JidoProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/JpKorjarProtocolDecoder.java b/src/main/java/org/traccar/protocol/JpKorjarProtocolDecoder.java
index 33026918a..ffddcc568 100644
--- a/src/main/java/org/traccar/protocol/JpKorjarProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/JpKorjarProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
index 2c1b5dcec..9fa550ded 100644
--- a/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/KenjiProtocolDecoder.java b/src/main/java/org/traccar/protocol/KenjiProtocolDecoder.java
index 63812242a..fb989c72e 100644
--- a/src/main/java/org/traccar/protocol/KenjiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/KenjiProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/KhdProtocolDecoder.java b/src/main/java/org/traccar/protocol/KhdProtocolDecoder.java
index a14f9b8a4..d7c236c4f 100644
--- a/src/main/java/org/traccar/protocol/KhdProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/KhdProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/L100ProtocolDecoder.java b/src/main/java/org/traccar/protocol/L100ProtocolDecoder.java
index 5b5eb7d60..820de8f1c 100644
--- a/src/main/java/org/traccar/protocol/L100ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/L100ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/LacakProtocolDecoder.java b/src/main/java/org/traccar/protocol/LacakProtocolDecoder.java
index 132087c8f..809fafc90 100644
--- a/src/main/java/org/traccar/protocol/LacakProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/LacakProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateUtil;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/LaipacProtocolDecoder.java b/src/main/java/org/traccar/protocol/LaipacProtocolDecoder.java
index d8554dc13..c55c0624d 100644
--- a/src/main/java/org/traccar/protocol/LaipacProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/LaipacProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/LeafSpyProtocolDecoder.java b/src/main/java/org/traccar/protocol/LeafSpyProtocolDecoder.java
index ad0c9bd32..6affb85c5 100644
--- a/src/main/java/org/traccar/protocol/LeafSpyProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/LeafSpyProtocolDecoder.java
@@ -22,7 +22,7 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 
diff --git a/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java b/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java
index 1460bb176..9415d0f07 100644
--- a/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/M2cProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/M2mProtocolDecoder.java b/src/main/java/org/traccar/protocol/M2mProtocolDecoder.java
index 21e4a2fd0..7eca93a59 100644
--- a/src/main/java/org/traccar/protocol/M2mProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/M2mProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/MaestroProtocolDecoder.java b/src/main/java/org/traccar/protocol/MaestroProtocolDecoder.java
index 37b097414..78308658e 100644
--- a/src/main/java/org/traccar/protocol/MaestroProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MaestroProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/ManPowerProtocolDecoder.java b/src/main/java/org/traccar/protocol/ManPowerProtocolDecoder.java
index 2c7b7eb40..8ac13b4d4 100644
--- a/src/main/java/org/traccar/protocol/ManPowerProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ManPowerProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Mavlink2ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Mavlink2ProtocolDecoder.java
index 431258388..fac930ba8 100644
--- a/src/main/java/org/traccar/protocol/Mavlink2ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Mavlink2ProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java b/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java
index 7233280c2..06b6f0e76 100644
--- a/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MegastekProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/MeiligaoProtocolDecoder.java b/src/main/java/org/traccar/protocol/MeiligaoProtocolDecoder.java
index 528098363..0b6bf8663 100644
--- a/src/main/java/org/traccar/protocol/MeiligaoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MeiligaoProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/MeitrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/MeitrackProtocolDecoder.java
index 3ab449350..30689436d 100644
--- a/src/main/java/org/traccar/protocol/MeitrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MeitrackProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
index c72a742b9..84ba75e7c 100644
--- a/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/MilesmateProtocolDecoder.java b/src/main/java/org/traccar/protocol/MilesmateProtocolDecoder.java
index 901ceb8f7..21c629411 100644
--- a/src/main/java/org/traccar/protocol/MilesmateProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MilesmateProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/MiniFinderProtocolDecoder.java b/src/main/java/org/traccar/protocol/MiniFinderProtocolDecoder.java
index d5be31cec..f2e5eb905 100644
--- a/src/main/java/org/traccar/protocol/MiniFinderProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MiniFinderProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java
index c63226c80..228578571 100644
--- a/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/MobilogixProtocolDecoder.java b/src/main/java/org/traccar/protocol/MobilogixProtocolDecoder.java
index 86c89e336..d7600ecbb 100644
--- a/src/main/java/org/traccar/protocol/MobilogixProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MobilogixProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java b/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java
index 3116d073c..8e6679b05 100644
--- a/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MoovboxProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 import org.w3c.dom.Document;
diff --git a/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java b/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java
index 8ce4fe8b1..9bca4d9bc 100644
--- a/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MotorProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Mta6ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Mta6ProtocolDecoder.java
index 88419b871..896c7a2d2 100644
--- a/src/main/java/org/traccar/protocol/Mta6ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Mta6ProtocolDecoder.java
@@ -26,7 +26,7 @@ import io.netty.handler.codec.http.HttpVersion;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/MtxProtocolDecoder.java b/src/main/java/org/traccar/protocol/MtxProtocolDecoder.java
index d1207bedf..e94d12b36 100644
--- a/src/main/java/org/traccar/protocol/MtxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MtxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java b/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java
index 379b610e1..b3e2295e8 100644
--- a/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MxtProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java
index db5521201..6dadbc559 100644
--- a/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NavigilProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/NavisProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavisProtocolDecoder.java
index 7ba474ae0..53631bd4e 100644
--- a/src/main/java/org/traccar/protocol/NavisProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NavisProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/NavisetProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavisetProtocolDecoder.java
index 10d71d76c..47d10b310 100644
--- a/src/main/java/org/traccar/protocol/NavisetProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NavisetProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java
index 5fb3e771f..9122eb362 100644
--- a/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/NeosProtocolDecoder.java b/src/main/java/org/traccar/protocol/NeosProtocolDecoder.java
index 6b5596dba..18ebc49da 100644
--- a/src/main/java/org/traccar/protocol/NeosProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NeosProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/NetProtocolDecoder.java b/src/main/java/org/traccar/protocol/NetProtocolDecoder.java
index c71a792a2..ebffb06f1 100644
--- a/src/main/java/org/traccar/protocol/NetProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NetProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/NiotProtocolDecoder.java b/src/main/java/org/traccar/protocol/NiotProtocolDecoder.java
index 47c6e2ffd..16d992938 100644
--- a/src/main/java/org/traccar/protocol/NiotProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NiotProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/NoranProtocolDecoder.java b/src/main/java/org/traccar/protocol/NoranProtocolDecoder.java
index 53dae7fd6..53b58f9b6 100644
--- a/src/main/java/org/traccar/protocol/NoranProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NoranProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/NvsProtocolDecoder.java b/src/main/java/org/traccar/protocol/NvsProtocolDecoder.java
index 5d1159f7d..f826c4121 100644
--- a/src/main/java/org/traccar/protocol/NvsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NvsProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/NyitechProtocolDecoder.java b/src/main/java/org/traccar/protocol/NyitechProtocolDecoder.java
index 62b41a2ea..49bc5b824 100644
--- a/src/main/java/org/traccar/protocol/NyitechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/NyitechProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/ObdDongleProtocolDecoder.java b/src/main/java/org/traccar/protocol/ObdDongleProtocolDecoder.java
index 1c9771ce9..bf0ba6f82 100644
--- a/src/main/java/org/traccar/protocol/ObdDongleProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ObdDongleProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/OigoProtocolDecoder.java b/src/main/java/org/traccar/protocol/OigoProtocolDecoder.java
index b9cc71e8c..b0c7c3bc6 100644
--- a/src/main/java/org/traccar/protocol/OigoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OigoProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/OkoProtocolDecoder.java b/src/main/java/org/traccar/protocol/OkoProtocolDecoder.java
index fa35ab455..3bb62acb9 100644
--- a/src/main/java/org/traccar/protocol/OkoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OkoProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/OmnicommProtocolDecoder.java b/src/main/java/org/traccar/protocol/OmnicommProtocolDecoder.java
index f90d1f2b3..9d747032b 100644
--- a/src/main/java/org/traccar/protocol/OmnicommProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OmnicommProtocolDecoder.java
@@ -21,7 +21,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/OpenGtsProtocolDecoder.java b/src/main/java/org/traccar/protocol/OpenGtsProtocolDecoder.java
index b76cbfa85..255a81ae6 100644
--- a/src/main/java/org/traccar/protocol/OpenGtsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OpenGtsProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
index 7277b1e5f..8ec47908f 100644
--- a/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpResponse;
 import org.traccar.BasePipelineFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java b/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java
index af819989e..681891edb 100644
--- a/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/OsmAndProtocolDecoder.java b/src/main/java/org/traccar/protocol/OsmAndProtocolDecoder.java
index ec9bbc240..178ec344f 100644
--- a/src/main/java/org/traccar/protocol/OsmAndProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OsmAndProtocolDecoder.java
@@ -22,7 +22,7 @@ import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseHttpProtocolDecoder;
 import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.database.CommandsManager;
 import org.traccar.helper.DateUtil;
diff --git a/src/main/java/org/traccar/protocol/OutsafeProtocolDecoder.java b/src/main/java/org/traccar/protocol/OutsafeProtocolDecoder.java
index 9de77d241..62b873be7 100644
--- a/src/main/java/org/traccar/protocol/OutsafeProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OutsafeProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 
diff --git a/src/main/java/org/traccar/protocol/OwnTracksProtocolDecoder.java b/src/main/java/org/traccar/protocol/OwnTracksProtocolDecoder.java
index 509d14ae4..71ac87168 100644
--- a/src/main/java/org/traccar/protocol/OwnTracksProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OwnTracksProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java
index b5d34a029..7079745be 100644
--- a/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PacificTrackProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/PathAwayProtocolDecoder.java b/src/main/java/org/traccar/protocol/PathAwayProtocolDecoder.java
index 02a15e34a..3e7fa9a5b 100644
--- a/src/main/java/org/traccar/protocol/PathAwayProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PathAwayProtocolDecoder.java
@@ -24,7 +24,7 @@ import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.HttpVersion;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java b/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java
index 26ce2fe53..244df6806 100644
--- a/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PiligrimProtocolDecoder.java
@@ -22,7 +22,7 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.QueryStringDecoder;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/PluginProtocolDecoder.java b/src/main/java/org/traccar/protocol/PluginProtocolDecoder.java
index 65de211ac..6ee95d18a 100644
--- a/src/main/java/org/traccar/protocol/PluginProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PluginProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java b/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java
index ce45abef6..028de5424 100644
--- a/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PolteProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
 
diff --git a/src/main/java/org/traccar/protocol/PortmanProtocolDecoder.java b/src/main/java/org/traccar/protocol/PortmanProtocolDecoder.java
index e1847a2b2..da9403313 100644
--- a/src/main/java/org/traccar/protocol/PortmanProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PortmanProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/PretraceProtocolDecoder.java b/src/main/java/org/traccar/protocol/PretraceProtocolDecoder.java
index a19384e62..ff6ad763a 100644
--- a/src/main/java/org/traccar/protocol/PretraceProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PretraceProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/PricolProtocolDecoder.java b/src/main/java/org/traccar/protocol/PricolProtocolDecoder.java
index 190c68258..5f6805f09 100644
--- a/src/main/java/org/traccar/protocol/PricolProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PricolProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java b/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java
index 0025cd9e7..e3a5881da 100644
--- a/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ProgressProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/PstProtocolDecoder.java b/src/main/java/org/traccar/protocol/PstProtocolDecoder.java
index e3fe1af62..872e77a3a 100644
--- a/src/main/java/org/traccar/protocol/PstProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/PstProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java
index 48ce7dede..f669c5ffd 100644
--- a/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Pt215ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Pt3000ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Pt3000ProtocolDecoder.java
index e7f9e062a..c33660f51 100644
--- a/src/main/java/org/traccar/protocol/Pt3000ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Pt3000ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/Pt502ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Pt502ProtocolDecoder.java
index 0817d527d..21b91203f 100644
--- a/src/main/java/org/traccar/protocol/Pt502ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Pt502ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/Pt60ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Pt60ProtocolDecoder.java
index 6a3fe2734..94b549fe6 100644
--- a/src/main/java/org/traccar/protocol/Pt60ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Pt60ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/R12wProtocolDecoder.java b/src/main/java/org/traccar/protocol/R12wProtocolDecoder.java
index d60318447..3be784911 100644
--- a/src/main/java/org/traccar/protocol/R12wProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/R12wProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/RaceDynamicsProtocolDecoder.java b/src/main/java/org/traccar/protocol/RaceDynamicsProtocolDecoder.java
index f441bf8ed..89639ad30 100644
--- a/src/main/java/org/traccar/protocol/RaceDynamicsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RaceDynamicsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/RadarProtocolDecoder.java b/src/main/java/org/traccar/protocol/RadarProtocolDecoder.java
index d87f77b84..818e97f8b 100644
--- a/src/main/java/org/traccar/protocol/RadarProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RadarProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/RaveonProtocolDecoder.java b/src/main/java/org/traccar/protocol/RaveonProtocolDecoder.java
index 50acd20a1..dfc21bf69 100644
--- a/src/main/java/org/traccar/protocol/RaveonProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RaveonProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/RecodaProtocolDecoder.java b/src/main/java/org/traccar/protocol/RecodaProtocolDecoder.java
index 04098225f..0c417a62f 100644
--- a/src/main/java/org/traccar/protocol/RecodaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RecodaProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/RetranslatorProtocolDecoder.java b/src/main/java/org/traccar/protocol/RetranslatorProtocolDecoder.java
index 5bf6cef50..afbf7e511 100644
--- a/src/main/java/org/traccar/protocol/RetranslatorProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RetranslatorProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/RitiProtocolDecoder.java b/src/main/java/org/traccar/protocol/RitiProtocolDecoder.java
index 46267ca90..501d5faa7 100644
--- a/src/main/java/org/traccar/protocol/RitiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RitiProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/RoboTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/RoboTrackProtocolDecoder.java
index b613f31d7..ffe16bd7b 100644
--- a/src/main/java/org/traccar/protocol/RoboTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RoboTrackProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/RstProtocolDecoder.java b/src/main/java/org/traccar/protocol/RstProtocolDecoder.java
index 9e3261a04..fcc96fbf1 100644
--- a/src/main/java/org/traccar/protocol/RstProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RstProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java b/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java
index 7abb52bd0..77df0deb7 100644
--- a/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
diff --git a/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java b/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java
index 6d565517b..a88bfa65a 100644
--- a/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/S168ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.CellTower;
diff --git a/src/main/java/org/traccar/protocol/SabertekProtocolDecoder.java b/src/main/java/org/traccar/protocol/SabertekProtocolDecoder.java
index 3033aa2cc..71279812c 100644
--- a/src/main/java/org/traccar/protocol/SabertekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SabertekProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/SanavProtocolDecoder.java b/src/main/java/org/traccar/protocol/SanavProtocolDecoder.java
index 7e1c158e6..6741cb67c 100644
--- a/src/main/java/org/traccar/protocol/SanavProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SanavProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/SanulProtocolDecoder.java b/src/main/java/org/traccar/protocol/SanulProtocolDecoder.java
index 036d1ee51..9568cd6d3 100644
--- a/src/main/java/org/traccar/protocol/SanulProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SanulProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/SatsolProtocolDecoder.java b/src/main/java/org/traccar/protocol/SatsolProtocolDecoder.java
index c457d5620..37a84be04 100644
--- a/src/main/java/org/traccar/protocol/SatsolProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SatsolProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/SigfoxProtocolDecoder.java b/src/main/java/org/traccar/protocol/SigfoxProtocolDecoder.java
index ce577f392..bbb8bc1cc 100644
--- a/src/main/java/org/traccar/protocol/SigfoxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SigfoxProtocolDecoder.java
@@ -22,7 +22,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DataConverter;
diff --git a/src/main/java/org/traccar/protocol/SiwiProtocolDecoder.java b/src/main/java/org/traccar/protocol/SiwiProtocolDecoder.java
index bf8bfab77..7ba501834 100644
--- a/src/main/java/org/traccar/protocol/SiwiProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SiwiProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java b/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java
index 818acd805..6ffcbbe44 100644
--- a/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.channel.Channel;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/SmartSoleProtocolDecoder.java b/src/main/java/org/traccar/protocol/SmartSoleProtocolDecoder.java
index 04920c969..7fc38f061 100644
--- a/src/main/java/org/traccar/protocol/SmartSoleProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SmartSoleProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java b/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java
index 9da52e97a..2244ad289 100644
--- a/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SmokeyProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/SolarPoweredProtocolDecoder.java b/src/main/java/org/traccar/protocol/SolarPoweredProtocolDecoder.java
index 9d5dc072f..0432fbd03 100644
--- a/src/main/java/org/traccar/protocol/SolarPoweredProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SolarPoweredProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/SpotProtocolDecoder.java b/src/main/java/org/traccar/protocol/SpotProtocolDecoder.java
index 34417d95f..d493b748d 100644
--- a/src/main/java/org/traccar/protocol/SpotProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SpotProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.channel.Channel;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.traccar.BaseHttpProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateUtil;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/StarLinkProtocolDecoder.java b/src/main/java/org/traccar/protocol/StarLinkProtocolDecoder.java
index afccb3a6b..0ff668fa8 100644
--- a/src/main/java/org/traccar/protocol/StarLinkProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/StarLinkProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DataConverter;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/StarcomProtocolDecoder.java b/src/main/java/org/traccar/protocol/StarcomProtocolDecoder.java
index 5ffddb318..56ab733c8 100644
--- a/src/main/java/org/traccar/protocol/StarcomProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/StarcomProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
diff --git a/src/main/java/org/traccar/protocol/StartekProtocolDecoder.java b/src/main/java/org/traccar/protocol/StartekProtocolDecoder.java
index 8a7b5cec7..53c02f28c 100644
--- a/src/main/java/org/traccar/protocol/StartekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/StartekProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/StbProtocolDecoder.java b/src/main/java/org/traccar/protocol/StbProtocolDecoder.java
index cc985d605..c07337fc5 100644
--- a/src/main/java/org/traccar/protocol/StbProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/StbProtocolDecoder.java
@@ -20,7 +20,7 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.Context;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/Stl060ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Stl060ProtocolDecoder.java
index 7b0055aa1..dc1fa3ba3 100644
--- a/src/main/java/org/traccar/protocol/Stl060ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Stl060ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
index fca7661f7..6340def86 100644
--- a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/SupermateProtocolDecoder.java b/src/main/java/org/traccar/protocol/SupermateProtocolDecoder.java
index 40a25bb91..f53f0f598 100644
--- a/src/main/java/org/traccar/protocol/SupermateProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SupermateProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/SviasProtocolDecoder.java b/src/main/java/org/traccar/protocol/SviasProtocolDecoder.java
index 7e783f6cd..d7b126167 100644
--- a/src/main/java/org/traccar/protocol/SviasProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SviasProtocolDecoder.java
@@ -24,7 +24,7 @@ import org.traccar.helper.PatternBuilder;
 
 import java.net.SocketAddress;
 import java.util.regex.Pattern;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.helper.Parser;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/SwiftechProtocolDecoder.java b/src/main/java/org/traccar/protocol/SwiftechProtocolDecoder.java
index 8d0b31c8f..b1cff8b64 100644
--- a/src/main/java/org/traccar/protocol/SwiftechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SwiftechProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java b/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java
index acfab5598..3d892c021 100644
--- a/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/T55ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/T57ProtocolDecoder.java b/src/main/java/org/traccar/protocol/T57ProtocolDecoder.java
index 2a3cca3e4..d9fd1c8cf 100644
--- a/src/main/java/org/traccar/protocol/T57ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/T57ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java b/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java
index d554c2999..b7a89f2e9 100644
--- a/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/T800xProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java b/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java
index ec0ce1931..e5e84b7c4 100644
--- a/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TaipProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/TechTltProtocolDecoder.java b/src/main/java/org/traccar/protocol/TechTltProtocolDecoder.java
index b6091136a..94efacc63 100644
--- a/src/main/java/org/traccar/protocol/TechTltProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TechTltProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TechtoCruzProtocolDecoder.java b/src/main/java/org/traccar/protocol/TechtoCruzProtocolDecoder.java
index 6b9f0edb6..09efcb7d4 100644
--- a/src/main/java/org/traccar/protocol/TechtoCruzProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TechtoCruzProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TekProtocolDecoder.java b/src/main/java/org/traccar/protocol/TekProtocolDecoder.java
index 33ff51d2d..819c7e819 100644
--- a/src/main/java/org/traccar/protocol/TekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TekProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/TelemaxProtocolDecoder.java b/src/main/java/org/traccar/protocol/TelemaxProtocolDecoder.java
index 9369ab101..f6f6f5379 100644
--- a/src/main/java/org/traccar/protocol/TelemaxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TelemaxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/protocol/TelicProtocolDecoder.java b/src/main/java/org/traccar/protocol/TelicProtocolDecoder.java
index a4f9e2989..9681dc565 100644
--- a/src/main/java/org/traccar/protocol/TelicProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TelicProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TeltonikaProtocolDecoder.java b/src/main/java/org/traccar/protocol/TeltonikaProtocolDecoder.java
index 03a5a00ea..f91eef837 100644
--- a/src/main/java/org/traccar/protocol/TeltonikaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TeltonikaProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
diff --git a/src/main/java/org/traccar/protocol/TeraTrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/TeraTrackProtocolDecoder.java
index c36da2aed..313210f63 100644
--- a/src/main/java/org/traccar/protocol/TeraTrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TeraTrackProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/ThinkPowerProtocolDecoder.java b/src/main/java/org/traccar/protocol/ThinkPowerProtocolDecoder.java
index b3f943078..085ce4c91 100644
--- a/src/main/java/org/traccar/protocol/ThinkPowerProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ThinkPowerProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Checksum;
diff --git a/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java b/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java
index 82033598d..796b726ea 100644
--- a/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/ThinkRaceProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java
index da0c6928b..af29fbc21 100644
--- a/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tk102ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java
index 476d1d682..e197a8a41 100644
--- a/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tk103ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
diff --git a/src/main/java/org/traccar/protocol/Tlt2hProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tlt2hProtocolDecoder.java
index ad7dfa886..3d219fc09 100644
--- a/src/main/java/org/traccar/protocol/Tlt2hProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tlt2hProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java b/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java
index 36cf7859f..7870c778a 100644
--- a/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/TmgProtocolDecoder.java b/src/main/java/org/traccar/protocol/TmgProtocolDecoder.java
index d27849f8c..00dc2a09b 100644
--- a/src/main/java/org/traccar/protocol/TmgProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TmgProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/TopflytechProtocolDecoder.java b/src/main/java/org/traccar/protocol/TopflytechProtocolDecoder.java
index 6de053c32..92a7b5c9d 100644
--- a/src/main/java/org/traccar/protocol/TopflytechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TopflytechProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java b/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java
index 4fe261aa4..a1d5481db 100644
--- a/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TopinProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java b/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
index b76d5b307..4f520f360 100644
--- a/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/Tr20ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tr20ProtocolDecoder.java
index 2f11bd152..0306770b6 100644
--- a/src/main/java/org/traccar/protocol/Tr20ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tr20ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/Tr900ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tr900ProtocolDecoder.java
index 319194c21..da0e8d292 100644
--- a/src/main/java/org/traccar/protocol/Tr900ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tr900ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TrackboxProtocolDecoder.java b/src/main/java/org/traccar/protocol/TrackboxProtocolDecoder.java
index db8022738..10483d445 100644
--- a/src/main/java/org/traccar/protocol/TrackboxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TrackboxProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/TrakMateProtocolDecoder.java b/src/main/java/org/traccar/protocol/TrakMateProtocolDecoder.java
index 4d5cb18f5..b1f50dc10 100644
--- a/src/main/java/org/traccar/protocol/TrakMateProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TrakMateProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TramigoProtocolDecoder.java b/src/main/java/org/traccar/protocol/TramigoProtocolDecoder.java
index e42e2f670..21dd78da3 100644
--- a/src/main/java/org/traccar/protocol/TramigoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TramigoProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateUtil;
diff --git a/src/main/java/org/traccar/protocol/TrvProtocolDecoder.java b/src/main/java/org/traccar/protocol/TrvProtocolDecoder.java
index e62cdf404..9df29ae1b 100644
--- a/src/main/java/org/traccar/protocol/TrvProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TrvProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/Tt8850ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Tt8850ProtocolDecoder.java
index 1010528c4..cbc983000 100644
--- a/src/main/java/org/traccar/protocol/Tt8850ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Tt8850ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java b/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java
index 93d3a63d2..6169e0545 100644
--- a/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TytanProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/TzoneProtocolDecoder.java b/src/main/java/org/traccar/protocol/TzoneProtocolDecoder.java
index b1ddc5203..8e84a6781 100644
--- a/src/main/java/org/traccar/protocol/TzoneProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TzoneProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
diff --git a/src/main/java/org/traccar/protocol/UlbotechProtocolDecoder.java b/src/main/java/org/traccar/protocol/UlbotechProtocolDecoder.java
index 7fec0bf8b..e6cc0a891 100644
--- a/src/main/java/org/traccar/protocol/UlbotechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/UlbotechProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/UproProtocolDecoder.java b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
index 9f236a7e5..bdc6bf24e 100644
--- a/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java b/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java
index 1081fa811..b9065e7f3 100644
--- a/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/UuxProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/V680ProtocolDecoder.java b/src/main/java/org/traccar/protocol/V680ProtocolDecoder.java
index 40267022b..237aea39b 100644
--- a/src/main/java/org/traccar/protocol/V680ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/V680ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/VisiontekProtocolDecoder.java b/src/main/java/org/traccar/protocol/VisiontekProtocolDecoder.java
index c4787bda2..9ab871bfe 100644
--- a/src/main/java/org/traccar/protocol/VisiontekProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/VisiontekProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java b/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java
index 1ee00bd3f..048c89e1e 100644
--- a/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/VnetProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
diff --git a/src/main/java/org/traccar/protocol/Vt200ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Vt200ProtocolDecoder.java
index 84ad09caa..a8fc801e7 100644
--- a/src/main/java/org/traccar/protocol/Vt200ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Vt200ProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.BcdUtil;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java b/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java
index 17fac4311..bf0cdcb51 100644
--- a/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java b/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
index 3967fb804..35fdc3ca5 100644
--- a/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java b/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java
index 19d9dd6c8..8dd7aab24 100644
--- a/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WialonProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/WliProtocolDecoder.java b/src/main/java/org/traccar/protocol/WliProtocolDecoder.java
index 976d4fb27..ec1c4d17a 100644
--- a/src/main/java/org/traccar/protocol/WliProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WliProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.UnitsConverter;
diff --git a/src/main/java/org/traccar/protocol/WondexProtocolDecoder.java b/src/main/java/org/traccar/protocol/WondexProtocolDecoder.java
index b85ae2656..22d7bade3 100644
--- a/src/main/java/org/traccar/protocol/WondexProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WondexProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/WristbandProtocolDecoder.java b/src/main/java/org/traccar/protocol/WristbandProtocolDecoder.java
index 58b5784d0..323992ddd 100644
--- a/src/main/java/org/traccar/protocol/WristbandProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WristbandProtocolDecoder.java
@@ -19,7 +19,7 @@ import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/Xexun2ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Xexun2ProtocolDecoder.java
index 766a3f05b..501897715 100644
--- a/src/main/java/org/traccar/protocol/Xexun2ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Xexun2ProtocolDecoder.java
@@ -20,7 +20,7 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
diff --git a/src/main/java/org/traccar/protocol/XexunProtocolDecoder.java b/src/main/java/org/traccar/protocol/XexunProtocolDecoder.java
index 73d386477..e41d467d5 100644
--- a/src/main/java/org/traccar/protocol/XexunProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/XexunProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/protocol/XirgoProtocolDecoder.java b/src/main/java/org/traccar/protocol/XirgoProtocolDecoder.java
index b53a42ac3..220c28054 100644
--- a/src/main/java/org/traccar/protocol/XirgoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/XirgoProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.channel.Channel;
 import io.netty.channel.socket.nio.NioDatagramChannel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
diff --git a/src/main/java/org/traccar/protocol/Xrb28ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Xrb28ProtocolDecoder.java
index 69e5b7372..88f2d07e5 100644
--- a/src/main/java/org/traccar/protocol/Xrb28ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Xrb28ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.DateBuilder;
diff --git a/src/main/java/org/traccar/protocol/Xt013ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Xt013ProtocolDecoder.java
index f49fb9563..ab0b2cdaa 100644
--- a/src/main/java/org/traccar/protocol/Xt013ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Xt013ProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
 import org.traccar.helper.PatternBuilder;
diff --git a/src/main/java/org/traccar/protocol/Xt2400ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Xt2400ProtocolDecoder.java
index b3f6493a8..edcb3f535 100644
--- a/src/main/java/org/traccar/protocol/Xt2400ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Xt2400ProtocolDecoder.java
@@ -18,7 +18,7 @@ package org.traccar.protocol;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.Protocol;
 import org.traccar.config.Keys;
 import org.traccar.helper.DataConverter;
diff --git a/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java b/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java
index bf5a23fa7..fd050bee9 100644
--- a/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java
@@ -17,7 +17,7 @@ package org.traccar.protocol;
 
 import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.DeviceSession;
+import org.traccar.session.DeviceSession;
 import org.traccar.NetworkMessage;
 import org.traccar.Protocol;
 import org.traccar.helper.Parser;
diff --git a/src/main/java/org/traccar/reports/ReportUtils.java b/src/main/java/org/traccar/reports/ReportUtils.java
index dd1ef478f..413d49ad7 100644
--- a/src/main/java/org/traccar/reports/ReportUtils.java
+++ b/src/main/java/org/traccar/reports/ReportUtils.java
@@ -31,7 +31,7 @@ import org.traccar.database.DeviceManager;
 import org.traccar.database.IdentityManager;
 import org.traccar.handler.events.MotionEventHandler;
 import org.traccar.helper.UnitsConverter;
-import org.traccar.model.DeviceState;
+import org.traccar.session.DeviceState;
 import org.traccar.model.Driver;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
diff --git a/src/main/java/org/traccar/database/ActiveDevice.java b/src/main/java/org/traccar/session/ActiveDevice.java
index c05d56ad2..af19ba55b 100644
--- a/src/main/java/org/traccar/database/ActiveDevice.java
+++ b/src/main/java/org/traccar/session/ActiveDevice.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar.database;
+package org.traccar.session;
 
 import io.netty.channel.Channel;
 import io.netty.handler.codec.http.HttpRequestDecoder;
diff --git a/src/main/java/org/traccar/database/ConnectionManager.java b/src/main/java/org/traccar/session/ConnectionManager.java
index f0e40f631..fbc15b00d 100644
--- a/src/main/java/org/traccar/database/ConnectionManager.java
+++ b/src/main/java/org/traccar/session/ConnectionManager.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar.database;
+package org.traccar.session;
 
 import io.netty.channel.Channel;
 import io.netty.util.Timeout;
@@ -27,7 +27,6 @@ import org.traccar.config.Keys;
 import org.traccar.handler.events.MotionEventHandler;
 import org.traccar.handler.events.OverspeedEventHandler;
 import org.traccar.model.Device;
-import org.traccar.model.DeviceState;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
 import org.traccar.storage.StorageException;
diff --git a/src/main/java/org/traccar/DeviceSession.java b/src/main/java/org/traccar/session/DeviceSession.java
index 322381807..6fe5b5d57 100644
--- a/src/main/java/org/traccar/DeviceSession.java
+++ b/src/main/java/org/traccar/session/DeviceSession.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar;
+package org.traccar.session;
 
 import java.util.TimeZone;
 
diff --git a/src/main/java/org/traccar/model/DeviceState.java b/src/main/java/org/traccar/session/DeviceState.java
index 75d6726ee..b7248688a 100644
--- a/src/main/java/org/traccar/model/DeviceState.java
+++ b/src/main/java/org/traccar/session/DeviceState.java
@@ -14,7 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.traccar.model;
+package org.traccar.session;
+
+import org.traccar.model.Position;
 
 public class DeviceState {