Clean up reported PMD issues

40 files changed, 168 insertions, 143 deletions

diff --git a/src/org/traccar/BasePipelineFactory.java b/src/org/traccar/BasePipelineFactory.java
index 7e27d8db6..404cab2ba 100644
--- a/src/org/traccar/BasePipelineFactory.java
+++ b/src/org/traccar/BasePipelineFactory.java
@@ -64,7 +64,7 @@ public abstract class BasePipelineFactory implements ChannelPipelineFactory {
 
                 msg.append("[").append(String.format("%08X", e.getChannel().getId())).append(": ");
                 msg.append(((InetSocketAddress) e.getChannel().getLocalAddress()).getPort());
-                msg.append((e instanceof DownstreamMessageEvent) ? " > " : " < ");
+                msg.append(e instanceof DownstreamMessageEvent ? " > " : " < ");
 
                 msg.append(((InetSocketAddress) event.getRemoteAddress()).getAddress().getHostAddress()).append("]");
 
diff --git a/src/org/traccar/BaseProtocolDecoder.java b/src/org/traccar/BaseProtocolDecoder.java
index 3509ec4cf..c47c0dc69 100644
--- a/src/org/traccar/BaseProtocolDecoder.java
+++ b/src/org/traccar/BaseProtocolDecoder.java
@@ -31,7 +31,7 @@ public abstract class BaseProtocolDecoder extends ExtendedObjectDecoder {
     private long deviceId;
 
     public boolean hasDeviceId() {
-        return (deviceId != 0);
+        return deviceId != 0;
     }
 
     public long getDeviceId() {
diff --git a/src/org/traccar/FilterHandler.java b/src/org/traccar/FilterHandler.java
index 9eb92135f..870132fe0 100644
--- a/src/org/traccar/FilterHandler.java
+++ b/src/org/traccar/FilterHandler.java
@@ -88,7 +88,7 @@ public class FilterHandler extends BaseDataHandler {
     }
 
     private boolean filterFuture(Position position) {
-        return filterFuture && (position.getFixTime().getTime() > System.currentTimeMillis() + FILTER_FUTURE_LIMIT);
+        return filterFuture && position.getFixTime().getTime() > System.currentTimeMillis() + FILTER_FUTURE_LIMIT;
     }
 
     private boolean filterDistance(Position position) {
diff --git a/src/org/traccar/MainEventHandler.java b/src/org/traccar/MainEventHandler.java
index 933d0d975..8b94a68c9 100644
--- a/src/org/traccar/MainEventHandler.java
+++ b/src/org/traccar/MainEventHandler.java
@@ -30,24 +30,22 @@ public class MainEventHandler extends IdleStateAwareChannelHandler {
     @Override
     public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) {
 
-        if (e.getMessage() != null) {
-            if (e.getMessage() instanceof Position) {
+        if (e.getMessage() != null && e.getMessage() instanceof Position) {
 
-                Position position = (Position) e.getMessage();
+            Position position = (Position) e.getMessage();
 
-                // Log position
-                StringBuilder s = new StringBuilder();
-                s.append(formatChannel(e.getChannel())).append(" ");
-                s.append("id: ").append(position.getDeviceId()).append(", ");
-                s.append("time: ").append(position.getFixTime()).append(", ");
-                s.append("lat: ").append(position.getLatitude()).append(", ");
-                s.append("lon: ").append(position.getLongitude()).append(", ");
-                s.append("speed: ").append(position.getSpeed()).append(", ");
-                s.append("course: ").append(position.getCourse());
-                Log.info(s.toString());
+            // Log position
+            StringBuilder s = new StringBuilder();
+            s.append(formatChannel(e.getChannel())).append(" ");
+            s.append("id: ").append(position.getDeviceId()).append(", ");
+            s.append("time: ").append(position.getFixTime()).append(", ");
+            s.append("lat: ").append(position.getLatitude()).append(", ");
+            s.append("lon: ").append(position.getLongitude()).append(", ");
+            s.append("speed: ").append(position.getSpeed()).append(", ");
+            s.append("course: ").append(position.getCourse());
+            Log.info(s.toString());
 
-                Context.getConnectionManager().update(position);
-            }
+            Context.getConnectionManager().update(position);
         }
     }
 
diff --git a/src/org/traccar/database/DataManager.java b/src/org/traccar/database/DataManager.java
index 1cd8ebb32..7f30fc6f3 100644
--- a/src/org/traccar/database/DataManager.java
+++ b/src/org/traccar/database/DataManager.java
@@ -118,7 +118,7 @@ public class DataManager implements IdentityManager {
     @Override
     public Device getDeviceByUniqueId(String uniqueId) throws SQLException {
 
-        if ((System.currentTimeMillis() - devicesLastUpdate > devicesRefreshDelay) || !devicesByUniqueId.containsKey(uniqueId)) {
+        if (System.currentTimeMillis() - devicesLastUpdate > devicesRefreshDelay || !devicesByUniqueId.containsKey(uniqueId)) {
 
             devicesById.clear();
             devicesByUniqueId.clear();
diff --git a/src/org/traccar/database/QueryBuilder.java b/src/org/traccar/database/QueryBuilder.java
index 09fb19d13..11dbcd1b9 100644
--- a/src/org/traccar/database/QueryBuilder.java
+++ b/src/org/traccar/database/QueryBuilder.java
@@ -37,6 +37,7 @@ import javax.json.JsonReader;
 import javax.json.stream.JsonParsingException;
 import javax.sql.DataSource;
 import org.traccar.Context;
+import org.traccar.helper.Log;
 import org.traccar.model.Factory;
 import org.traccar.model.MiscFormatter;
 
@@ -258,6 +259,7 @@ public class QueryBuilder {
                         }
                     }
                 } catch (IllegalAccessException | InvocationTargetException error) {
+                    Log.warning(error);
                 }
             }
         }
@@ -319,6 +321,7 @@ public class QueryBuilder {
                                         try {
                                             method.invoke(object, resultSet.getBoolean(name));
                                         } catch (IllegalAccessException | InvocationTargetException error) {
+                                            Log.warning(error);
                                         }
                                     }
                                 });
@@ -329,6 +332,7 @@ public class QueryBuilder {
                                         try {
                                             method.invoke(object, resultSet.getInt(name));
                                         } catch (IllegalAccessException | InvocationTargetException error) {
+                                            Log.warning(error);
                                         }
                                     }
                                 });
@@ -339,6 +343,7 @@ public class QueryBuilder {
                                         try {
                                             method.invoke(object, resultSet.getLong(name));
                                         } catch (IllegalAccessException | InvocationTargetException error) {
+                                            Log.warning(error);
                                         }
                                     }
                                 });
@@ -349,6 +354,7 @@ public class QueryBuilder {
                                         try {
                                             method.invoke(object, resultSet.getDouble(name));
                                         } catch (IllegalAccessException | InvocationTargetException error) {
+                                            Log.warning(error);
                                         }
                                     }
                                 });
@@ -359,6 +365,7 @@ public class QueryBuilder {
                                         try {
                                             method.invoke(object, resultSet.getString(name));
                                         } catch (IllegalAccessException | InvocationTargetException error) {
+                                            Log.warning(error);
                                         }
                                     }
                                 });
@@ -369,6 +376,7 @@ public class QueryBuilder {
                                         try {
                                             method.invoke(object, new Date(resultSet.getTimestamp(name).getTime()));
                                         } catch (IllegalAccessException | InvocationTargetException error) {
+                                            Log.warning(error);
                                         }
                                     }
                                 });
@@ -379,6 +387,7 @@ public class QueryBuilder {
                                         try (JsonReader reader = Json.createReader(new StringReader(resultSet.getString(name)))) {
                                             method.invoke(object, MiscFormatter.fromJson(reader.readObject()));
                                         } catch (IllegalAccessException | InvocationTargetException | JsonParsingException error) {
+                                            Log.warning(error);
                                         }
                                     }
                                 });
diff --git a/src/org/traccar/geocode/BingMapsReverseGeocoder.java b/src/org/traccar/geocode/BingMapsReverseGeocoder.java
index 34c3e4922..8c47febef 100644
--- a/src/org/traccar/geocode/BingMapsReverseGeocoder.java
+++ b/src/org/traccar/geocode/BingMapsReverseGeocoder.java
@@ -29,7 +29,7 @@ public class BingMapsReverseGeocoder extends JsonReverseGeocoder {
     }
 
     @Override
-    protected Address parseAddress(JsonObject json) {
+    public Address parseAddress(JsonObject json) {
         JsonArray result = json.getJsonArray("resourceSets");
         if (result != null) {
             JsonObject location = result.getJsonObject(0).getJsonArray("resources").getJsonObject(0).getJsonObject("address");
diff --git a/src/org/traccar/geocode/FactualReverseGeocoder.java b/src/org/traccar/geocode/FactualReverseGeocoder.java
index 8f32cf624..6e5a48423 100644
--- a/src/org/traccar/geocode/FactualReverseGeocoder.java
+++ b/src/org/traccar/geocode/FactualReverseGeocoder.java
@@ -28,7 +28,7 @@ public class FactualReverseGeocoder extends JsonReverseGeocoder {
     }
 
     @Override
-    protected Address parseAddress(JsonObject json) {
+    public Address parseAddress(JsonObject json) {
         JsonObject result = json.getJsonObject("response").getJsonObject("data");
         if (result != null) {
                 Address address = new Address();
diff --git a/src/org/traccar/geocode/GisgraphyReverseGeocoder.java b/src/org/traccar/geocode/GisgraphyReverseGeocoder.java
index 59c4de723..ef9209fca 100644
--- a/src/org/traccar/geocode/GisgraphyReverseGeocoder.java
+++ b/src/org/traccar/geocode/GisgraphyReverseGeocoder.java
@@ -28,7 +28,7 @@ public class GisgraphyReverseGeocoder extends JsonReverseGeocoder {
     }
 
     @Override
-    protected Address parseAddress(JsonObject json) {
+    public Address parseAddress(JsonObject json) {
         Address address = new Address();
 
         JsonObject result = json.getJsonArray("result").getJsonObject(0);
diff --git a/src/org/traccar/geocode/GoogleReverseGeocoder.java b/src/org/traccar/geocode/GoogleReverseGeocoder.java
index ade49a38b..ca1d42000 100644
--- a/src/org/traccar/geocode/GoogleReverseGeocoder.java
+++ b/src/org/traccar/geocode/GoogleReverseGeocoder.java
@@ -30,7 +30,7 @@ public class GoogleReverseGeocoder extends JsonReverseGeocoder {
     }
 
     @Override
-    protected Address parseAddress(JsonObject json) {
+    public Address parseAddress(JsonObject json) {
         JsonArray results = json.getJsonArray("results");
 
         if (!results.isEmpty()) {
@@ -43,35 +43,31 @@ public class GoogleReverseGeocoder extends JsonReverseGeocoder {
 
                 String value = component.getString("short_name");
 
-                for (JsonString type : component.getJsonArray("types").getValuesAs(JsonString.class)) {
+                typesLoop: for (JsonString type : component.getJsonArray("types").getValuesAs(JsonString.class)) {
 
                     switch (type.getString()) {
                         case "street_number":
                             address.setHouse(value);
-                            break;
+                            break typesLoop;
                         case "route":
                             address.setStreet(value);
-                            break;
+                            break typesLoop;
                         case "locality":
                             address.setSettlement(value);
-                            break;
+                            break typesLoop;
                         case "administrative_area_level_2":
                             address.setDistrict(value);
-                            break;
+                            break typesLoop;
                         case "administrative_area_level_1":
                             address.setState(value);
-                            break;
+                            break typesLoop;
                         case "country":
                             address.setCountry(value);
-                            break;
+                            break typesLoop;
                         case "postal_code":
                             address.setPostcode(value);
-                            break;
-                        default:
-                            continue;
+                            break typesLoop;
                     }
-
-                    break;
                 }
             }
 
diff --git a/src/org/traccar/geocode/JsonReverseGeocoder.java b/src/org/traccar/geocode/JsonReverseGeocoder.java
index 25b8e7853..88150a299 100644
--- a/src/org/traccar/geocode/JsonReverseGeocoder.java
+++ b/src/org/traccar/geocode/JsonReverseGeocoder.java
@@ -18,14 +18,10 @@ package org.traccar.geocode;
 import com.ning.http.client.AsyncCompletionHandler;
 import com.ning.http.client.Response;
 import org.traccar.Context;
-import org.traccar.helper.Log;
 
 import javax.json.Json;
 import javax.json.JsonObject;
 import javax.json.JsonReader;
-import java.io.InputStreamReader;
-import java.net.HttpURLConnection;
-import java.net.URL;
 import java.util.AbstractMap;
 import java.util.Collections;
 import java.util.LinkedHashMap;
@@ -84,6 +80,6 @@ public abstract class JsonReverseGeocoder implements ReverseGeocoder {
         });
     }
 
-    protected abstract Address parseAddress(JsonObject json);
+    public abstract Address parseAddress(JsonObject json);
 
 }
diff --git a/src/org/traccar/geocode/MapQuestReverseGeocoder.java b/src/org/traccar/geocode/MapQuestReverseGeocoder.java
index 7141ea020..be3f51b04 100644
--- a/src/org/traccar/geocode/MapQuestReverseGeocoder.java
+++ b/src/org/traccar/geocode/MapQuestReverseGeocoder.java
@@ -29,7 +29,7 @@ public class MapQuestReverseGeocoder extends JsonReverseGeocoder {
     }
 
     @Override
-    protected Address parseAddress(JsonObject json) {
+    public Address parseAddress(JsonObject json) {
         JsonArray result = json.getJsonArray("results");
         if (result != null) {
             JsonArray locations = result.getJsonObject(0).getJsonArray("locations");
diff --git a/src/org/traccar/geocode/NominatimReverseGeocoder.java b/src/org/traccar/geocode/NominatimReverseGeocoder.java
index 763987eae..933d9389c 100644
--- a/src/org/traccar/geocode/NominatimReverseGeocoder.java
+++ b/src/org/traccar/geocode/NominatimReverseGeocoder.java
@@ -28,7 +28,7 @@ public class NominatimReverseGeocoder extends JsonReverseGeocoder {
     }
 
     @Override
-    protected Address parseAddress(JsonObject json) {
+    public Address parseAddress(JsonObject json) {
         JsonObject result = json.getJsonObject("address");
 
         if (result != null) {
diff --git a/src/org/traccar/geocode/OpenCageReverseGeocoder.java b/src/org/traccar/geocode/OpenCageReverseGeocoder.java
index 1ad4aaf91..3104cb56a 100644
--- a/src/org/traccar/geocode/OpenCageReverseGeocoder.java
+++ b/src/org/traccar/geocode/OpenCageReverseGeocoder.java
@@ -29,7 +29,7 @@ public class OpenCageReverseGeocoder extends JsonReverseGeocoder {
     }
 
     @Override
-    protected Address parseAddress(JsonObject json) {
+    public Address parseAddress(JsonObject json) {
         JsonArray result = json.getJsonArray("results");
         if (result != null) {
             JsonObject location = result.getJsonObject(0).getJsonObject("components");
diff --git a/src/org/traccar/geocode/ReverseGeocoder.java b/src/org/traccar/geocode/ReverseGeocoder.java
index 1367e82dc..5d985fb31 100644
--- a/src/org/traccar/geocode/ReverseGeocoder.java
+++ b/src/org/traccar/geocode/ReverseGeocoder.java
@@ -17,7 +17,7 @@ package org.traccar.geocode;
 
 public interface ReverseGeocoder {
 
-    public interface ReverseGeocoderCallback {
+    interface ReverseGeocoderCallback {
 
         void onResult(String address);
 
diff --git a/src/org/traccar/helper/BitUtil.java b/src/org/traccar/helper/BitUtil.java
index e8a55c0a8..6dceb52d7 100644
--- a/src/org/traccar/helper/BitUtil.java
+++ b/src/org/traccar/helper/BitUtil.java
@@ -25,7 +25,7 @@ public class BitUtil {
     }
 
     public static int range(int number, int index) {
-        return (number >> index);
+        return number >> index;
     }
 
     public static int range(int number, int index, int length) {
@@ -33,7 +33,7 @@ public class BitUtil {
     }
 
     public static long range(long number, int index) {
-        return (number >> index);
+        return number >> index;
     }
 
     public static long range(long number, int index, int length) {
diff --git a/src/org/traccar/helper/Checksum.java b/src/org/traccar/helper/Checksum.java
index 69c9dd499..d3cec3880 100644
--- a/src/org/traccar/helper/Checksum.java
+++ b/src/org/traccar/helper/Checksum.java
@@ -168,7 +168,7 @@ public class Checksum {
         for (int i = 0; remain != 0; i++) {
             long digit = remain % 10;
 
-            if ((i % 2) == 0) {
+            if (i % 2 == 0) {
                 digit *= 2;
                 if (digit >= 10) {
                     digit = 1 + (digit % 10);
diff --git a/src/org/traccar/helper/DistanceCalculator.java b/src/org/traccar/helper/DistanceCalculator.java
index 072f3d7a8..7ba5044bc 100644
--- a/src/org/traccar/helper/DistanceCalculator.java
+++ b/src/org/traccar/helper/DistanceCalculator.java
@@ -17,16 +17,16 @@ package org.traccar.helper;
 
 public class DistanceCalculator {
 
-    private static final double equatorialEarthRadius = 6378.1370D;
-    private static final double deg2rad = (Math.PI / 180);
+    private static final double EQUATORIAL_EARTH_RADIUS = 6378.1370;
+    private static final double DEG_TO_RAD = Math.PI / 180;
 
     public static double distance(double lat1, double lon1, double lat2, double lon2) {
-        double dlong = (lon2 - lon1) * deg2rad;
-        double dlat = (lat2 - lat1) * deg2rad;
+        double dlong = (lon2 - lon1) * DEG_TO_RAD;
+        double dlat = (lat2 - lat1) * DEG_TO_RAD;
         double a = Math.pow(Math.sin(dlat / 2), 2) +
-                Math.cos(lat1 * deg2rad) * Math.cos(lat2 * deg2rad) * Math.pow(Math.sin(dlong / 2), 2);
+                Math.cos(lat1 * DEG_TO_RAD) * Math.cos(lat2 * DEG_TO_RAD) * Math.pow(Math.sin(dlong / 2), 2);
         double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
-        double d = equatorialEarthRadius * c;
+        double d = EQUATORIAL_EARTH_RADIUS * c;
         return d * 1000;
     }
 
diff --git a/src/org/traccar/helper/PatternUtil.java b/src/org/traccar/helper/PatternUtil.java
index e129a1438..4fa212200 100644
--- a/src/org/traccar/helper/PatternUtil.java
+++ b/src/org/traccar/helper/PatternUtil.java
@@ -31,7 +31,8 @@ public class PatternUtil {
                 if (matcher.matches()) {
                     match = pattern.substring(0, i);
                 }
-            } catch (PatternSyntaxException e) {
+            } catch (PatternSyntaxException error) {
+                Log.warning(error);
             }
         }
 
diff --git a/src/org/traccar/model/Device.java b/src/org/traccar/model/Device.java
index 09d9ce0ab..7622f78cd 100644
--- a/src/org/traccar/model/Device.java
+++ b/src/org/traccar/model/Device.java
@@ -56,10 +56,42 @@ public class Device implements Factory {
 
     private String status;
 
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
     private Date lastUpdate;
 
+    public Date getLastUpdate() {
+        return lastUpdate;
+    }
+
+    public void setLastUpdate(Date lastUpdate) {
+        this.lastUpdate = lastUpdate;
+    }
+
     private long positionId;
 
+    public long getPositionId() {
+        return positionId;
+    }
+
+    public void setPositionId(long positionId) {
+        this.positionId = positionId;
+    }
+
     private long dataId;
 
+    public long getDataId() {
+        return dataId;
+    }
+
+    public void setDataId(long dataId) {
+        this.dataId = dataId;
+    }
+
 }
diff --git a/src/org/traccar/model/User.java b/src/org/traccar/model/User.java
index 05437dd97..f9534b87d 100644
--- a/src/org/traccar/model/User.java
+++ b/src/org/traccar/model/User.java
@@ -57,6 +57,14 @@ public class User implements Factory {
 
     private boolean readonly;
 
+    public boolean getReadonly() {
+        return readonly;
+    }
+
+    public void setReadonly(boolean readonly) {
+        this.readonly = readonly;
+    }
+
     private boolean admin;
 
     public boolean getAdmin() {
diff --git a/src/org/traccar/protocol/ApelProtocolDecoder.java b/src/org/traccar/protocol/ApelProtocolDecoder.java
index 3bfed1ebb..865a34e99 100644
--- a/src/org/traccar/protocol/ApelProtocolDecoder.java
+++ b/src/org/traccar/protocol/ApelProtocolDecoder.java
@@ -109,7 +109,7 @@ public class ApelProtocolDecoder extends BaseProtocolDecoder {
         }
 
         if (type == MSG_TRACKER_ID_EXT) {
-            long id = buf.readUnsignedInt();
+            buf.readUnsignedInt(); // id
             int length = buf.readUnsignedShort();
             buf.skipBytes(length);
             length = buf.readUnsignedShort();
diff --git a/src/org/traccar/protocol/CalAmpProtocolDecoder.java b/src/org/traccar/protocol/CalAmpProtocolDecoder.java
index 7c6a45f18..0648dd29f 100644
--- a/src/org/traccar/protocol/CalAmpProtocolDecoder.java
+++ b/src/org/traccar/protocol/CalAmpProtocolDecoder.java
@@ -44,9 +44,9 @@ public class CalAmpProtocolDecoder extends BaseProtocolDecoder {
     public static final int MSG_MINI_EVENT_REPORT = 10;
     public static final int MSG_MINI_USER_DATA = 11;
 
-    private static final int SERVICE_UNACKNOWLEDGED = 0;
-    private static final int SERVICE_ACKNOWLEDGED = 1;
-    private static final int SERVICE_RESPONSE = 2;
+    public static final int SERVICE_UNACKNOWLEDGED = 0;
+    public static final int SERVICE_ACKNOWLEDGED = 1;
+    public static final int SERVICE_RESPONSE = 2;
 
     private void sendResponse(Channel channel, SocketAddress remoteAddress, int type, int index, int result) {
         if (channel != null) {
diff --git a/src/org/traccar/protocol/CastelProtocolDecoder.java b/src/org/traccar/protocol/CastelProtocolDecoder.java
index d7c6bbf46..dcfa2868b 100644
--- a/src/org/traccar/protocol/CastelProtocolDecoder.java
+++ b/src/org/traccar/protocol/CastelProtocolDecoder.java
@@ -111,22 +111,20 @@ public class CastelProtocolDecoder extends BaseProtocolDecoder {
 
                 return null;
 
-            } else if (type == MSG_LOGIN) {
-
-                if (channel != null) {
-                    ChannelBuffer response = ChannelBuffers.directBuffer(ByteOrder.LITTLE_ENDIAN, 41);
-                    response.writeByte(0x40); response.writeByte(0x40);
-                    response.writeShort(response.capacity());
-                    response.writeByte(version);
-                    response.writeBytes(id);
-                    response.writeShort(ChannelBuffers.swapShort(MSG_LOGIN_RESPONSE));
-                    response.writeInt(0xFFFFFFFF);
-                    response.writeShort(0);
-                    response.writeInt((int) (System.currentTimeMillis() / 1000));
-                    response.writeShort(Checksum.crc16(Checksum.CRC16_X25, response.toByteBuffer(0, response.writerIndex())));
-                    response.writeByte(0x0D); response.writeByte(0x0A);
-                    channel.write(response, remoteAddress);
-                }
+            } else if (type == MSG_LOGIN && channel != null) {
+
+                ChannelBuffer response = ChannelBuffers.directBuffer(ByteOrder.LITTLE_ENDIAN, 41);
+                response.writeByte(0x40); response.writeByte(0x40);
+                response.writeShort(response.capacity());
+                response.writeByte(version);
+                response.writeBytes(id);
+                response.writeShort(ChannelBuffers.swapShort(MSG_LOGIN_RESPONSE));
+                response.writeInt(0xFFFFFFFF);
+                response.writeShort(0);
+                response.writeInt((int) (System.currentTimeMillis() / 1000));
+                response.writeShort(Checksum.crc16(Checksum.CRC16_X25, response.toByteBuffer(0, response.writerIndex())));
+                response.writeByte(0x0D); response.writeByte(0x0A);
+                channel.write(response, remoteAddress);
 
             }
 
diff --git a/src/org/traccar/protocol/CityeasyProtocolDecoder.java b/src/org/traccar/protocol/CityeasyProtocolDecoder.java
index 158d84ea3..d4235c191 100644
--- a/src/org/traccar/protocol/CityeasyProtocolDecoder.java
+++ b/src/org/traccar/protocol/CityeasyProtocolDecoder.java
@@ -71,10 +71,8 @@ public class CityeasyProtocolDecoder extends BaseProtocolDecoder {
         buf.readUnsignedShort(); // length
 
         String imei = ChannelBufferTools.readHexString(buf, 14);
-        if (!identify(imei, channel, null, false)) {
-            if (!identify(imei + Checksum.luhn(Long.parseLong(imei)), channel)) {
-                return null;
-            }
+        if (!identify(imei, channel, null, false) && !identify(imei + Checksum.luhn(Long.parseLong(imei)), channel)) {
+            return null;
         }
 
         int type = buf.readUnsignedShort();
diff --git a/src/org/traccar/protocol/FlextrackProtocolDecoder.java b/src/org/traccar/protocol/FlextrackProtocolDecoder.java
index 04eed5734..e89e31aaf 100644
--- a/src/org/traccar/protocol/FlextrackProtocolDecoder.java
+++ b/src/org/traccar/protocol/FlextrackProtocolDecoder.java
@@ -88,10 +88,8 @@ public class FlextrackProtocolDecoder extends BaseProtocolDecoder {
             String id = parser.group(index++);
             String iccid = parser.group(index++);
 
-            if (!identify(iccid, channel, null, false)) {
-                if (!identify(id, channel)) {
-                    return null;
-                }
+            if (!identify(iccid, channel, null, false) && !identify(id, channel)) {
+                return null;
             }
 
         } else if (sentence.contains("UNITSTAT") && hasDeviceId()) {
diff --git a/src/org/traccar/protocol/H02FrameDecoder.java b/src/org/traccar/protocol/H02FrameDecoder.java
index 0e3f78737..ce27b406f 100644
--- a/src/org/traccar/protocol/H02FrameDecoder.java
+++ b/src/org/traccar/protocol/H02FrameDecoder.java
@@ -49,12 +49,10 @@ public class H02FrameDecoder extends FrameDecoder {
                 return buf.readBytes(index + 1 - buf.readerIndex());
             }
 
-        } else if (marker.equals("$")) {
+        } else if (marker.equals("$") && buf.readableBytes() >= MESSAGE_LENGTH) {
 
             // Return binary message
-            if (buf.readableBytes() >= MESSAGE_LENGTH) {
-                return buf.readBytes(MESSAGE_LENGTH);
-            }
+            return buf.readBytes(MESSAGE_LENGTH);
 
         }
 
diff --git a/src/org/traccar/protocol/Jt600ProtocolDecoder.java b/src/org/traccar/protocol/Jt600ProtocolDecoder.java
index e8cfd8631..6ce282988 100644
--- a/src/org/traccar/protocol/Jt600ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Jt600ProtocolDecoder.java
@@ -50,7 +50,7 @@ public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
 
         // Protocol and type
         int version = ChannelBufferTools.readHexInteger(buf, 1);
-        int type = buf.readUnsignedByte() & 0xf;
+        buf.readUnsignedByte(); // type
 
         buf.readBytes(2); // length
 
diff --git a/src/org/traccar/protocol/MegastekProtocolDecoder.java b/src/org/traccar/protocol/MegastekProtocolDecoder.java
index 37bf5a0d4..17e9dc6d7 100644
--- a/src/org/traccar/protocol/MegastekProtocolDecoder.java
+++ b/src/org/traccar/protocol/MegastekProtocolDecoder.java
@@ -128,7 +128,7 @@ public class MegastekProtocolDecoder extends BaseProtocolDecoder {
     private Position decodeOld(Channel channel, String sentence) {
 
         // Detect type
-        boolean simple = (sentence.charAt(3) == ',' || sentence.charAt(6) == ',');
+        boolean simple = sentence.charAt(3) == ',' || sentence.charAt(6) == ',';
 
         // Split message
         String id;
@@ -189,10 +189,8 @@ public class MegastekProtocolDecoder extends BaseProtocolDecoder {
                 position.set(Event.KEY_ALARM, parser.group(index++));
 
                 // IMEI
-                if (!identify(parser.group(index++), channel, null, false)) {
-                    if (!identify(id, channel)) {
-                        return null;
-                    }
+                if (!identify(parser.group(index++), channel, null, false) && !identify(id, channel)) {
+                    return null;
                 }
                 position.setDeviceId(getDeviceId());
 
diff --git a/src/org/traccar/protocol/MeiligaoProtocolDecoder.java b/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
index f5ad46885..4584c1862 100644
--- a/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
+++ b/src/org/traccar/protocol/MeiligaoProtocolDecoder.java
@@ -92,17 +92,15 @@ public class MeiligaoProtocolDecoder extends BaseProtocolDecoder {
             id += d1;
 
             // Second digit
-            int d2 = (b & 0x0f);
+            int d2 = b & 0x0f;
             if (d2 == 0xf) break;
             id += d2;
         }
 
-        if (id.length() == 14) {
-            // Try to recreate full IMEI number
-            // Sometimes first digit is cut, so this won't work
-            if (identify(id + Checksum.luhn(Long.parseLong(id)), channel, null, false)) {
-                return true;
-            }
+        // Try to recreate full IMEI number
+        // Sometimes first digit is cut, so this won't work
+        if (id.length() == 14 && identify(id + Checksum.luhn(Long.parseLong(id)), channel, null, false)) {
+            return true;
         }
 
         return identify(id, channel);
diff --git a/src/org/traccar/protocol/Mta6ProtocolDecoder.java b/src/org/traccar/protocol/Mta6ProtocolDecoder.java
index 8827393dc..055e4278c 100644
--- a/src/org/traccar/protocol/Mta6ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Mta6ProtocolDecoder.java
@@ -34,6 +34,7 @@ import org.traccar.BaseProtocolDecoder;
 import org.traccar.Protocol;
 import org.traccar.helper.BitUtil;
 import org.traccar.helper.ChannelBufferTools;
+import org.traccar.helper.Log;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
 
@@ -195,6 +196,7 @@ public class Mta6ProtocolDecoder extends BaseProtocolDecoder {
                 positions.add(position);
             }
         } catch (IndexOutOfBoundsException error) {
+            Log.warning(error);
         }
 
         return positions;
diff --git a/src/org/traccar/protocol/MxtProtocolDecoder.java b/src/org/traccar/protocol/MxtProtocolDecoder.java
index e35973654..9151d9672 100644
--- a/src/org/traccar/protocol/MxtProtocolDecoder.java
+++ b/src/org/traccar/protocol/MxtProtocolDecoder.java
@@ -20,7 +20,6 @@ import java.util.Calendar;
 import java.util.Date;
 import java.util.TimeZone;
 import org.jboss.netty.buffer.ChannelBuffer;
-import org.jboss.netty.buffer.ChannelBuffers;
 import org.jboss.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.helper.BitUtil;
@@ -100,7 +99,7 @@ public class MxtProtocolDecoder extends BaseProtocolDecoder {
 
             position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
 
-            int inputMask = buf.readUnsignedByte();
+            buf.readUnsignedByte(); // input mask
 
             if (BitUtil.check(infoGroups, 0)) {
                 buf.skipBytes(8); // waypoints
diff --git a/src/org/traccar/protocol/NoranProtocolDecoder.java b/src/org/traccar/protocol/NoranProtocolDecoder.java
index ddfa4cba6..62f0b4219 100644
--- a/src/org/traccar/protocol/NoranProtocolDecoder.java
+++ b/src/org/traccar/protocol/NoranProtocolDecoder.java
@@ -76,13 +76,10 @@ public class NoranProtocolDecoder extends BaseProtocolDecoder {
                  type == MSG_ALARM) {
 
             boolean newFormat = false;
-            /*if (((type == MSG_UPLOAD_POSITION || type == MSG_ALARM) && buf.readableBytes() == 30) ||
-                ((type == MSG_CONTROL_RESPONSE) && buf.readableBytes() == 39)) {
-                newFormat = false;
-            }*/
-            if (((type == MSG_UPLOAD_POSITION || type == MSG_ALARM) && buf.readableBytes() == 48) ||
-                ((type == MSG_CONTROL_RESPONSE) && buf.readableBytes() == 57) ||
-                ((type == MSG_UPLOAD_POSITION_NEW))) {
+            if (type == MSG_UPLOAD_POSITION && buf.readableBytes() == 48 ||
+                type == MSG_ALARM && buf.readableBytes() == 48 ||
+                type == MSG_CONTROL_RESPONSE && buf.readableBytes() == 57 ||
+                type == MSG_UPLOAD_POSITION_NEW) {
                 newFormat = true;
             }
 
diff --git a/src/org/traccar/protocol/OrionFrameDecoder.java b/src/org/traccar/protocol/OrionFrameDecoder.java
index 033dbd1d5..3babda175 100644
--- a/src/org/traccar/protocol/OrionFrameDecoder.java
+++ b/src/org/traccar/protocol/OrionFrameDecoder.java
@@ -34,34 +34,33 @@ public class OrionFrameDecoder extends FrameDecoder {
 
             int type = buf.getUnsignedByte(buf.readerIndex() + 2) & 0x0f;
 
-            if (type == OrionProtocolDecoder.MSG_USERLOG) {
-                if (buf.readableBytes() >= length + 5) {
+            if (type == OrionProtocolDecoder.MSG_USERLOG && buf.readableBytes() >= length + 5) {
 
-                    int index = buf.readerIndex() + 3;
-                    int count = buf.getUnsignedByte(index) & 0x0f;
-                    index += 5;
-                    length += 5;
+                int index = buf.readerIndex() + 3;
+                int count = buf.getUnsignedByte(index) & 0x0f;
+                index += 5;
+                length += 5;
 
-                    for (int i = 0; i < count; i++) {
-                        if (buf.readableBytes() < length) {
-                            return null;
-                        }
-                        int logLength = buf.getUnsignedByte(index + 1);
-                        index += logLength;
-                        length += logLength;
+                for (int i = 0; i < count; i++) {
+                    if (buf.readableBytes() < length) {
+                        return null;
                     }
+                    int logLength = buf.getUnsignedByte(index + 1);
+                    index += logLength;
+                    length += logLength;
+                }
 
-                    if (buf.readableBytes() >= length) {
-                        return buf.readBytes(length);
-                    }
+                if (buf.readableBytes() >= length) {
+                    return buf.readBytes(length);
                 }
-            } else if (type == OrionProtocolDecoder.MSG_SYSLOG) {
-                if (buf.readableBytes() >= length + 12) {
-                    length += buf.getUnsignedShort(buf.readerIndex() + 8);
-                    if (buf.readableBytes() >= length) {
-                        return buf.readBytes(length);
-                    }
+
+            } else if (type == OrionProtocolDecoder.MSG_SYSLOG && buf.readableBytes() >= length + 12) {
+
+                length += buf.getUnsignedShort(buf.readerIndex() + 8);
+                if (buf.readableBytes() >= length) {
+                    return buf.readBytes(length);
                 }
+
             }
         }
 
diff --git a/src/org/traccar/protocol/ProgressProtocolDecoder.java b/src/org/traccar/protocol/ProgressProtocolDecoder.java
index 0eaa66411..fa7b1e3a9 100644
--- a/src/org/traccar/protocol/ProgressProtocolDecoder.java
+++ b/src/org/traccar/protocol/ProgressProtocolDecoder.java
@@ -173,7 +173,7 @@ public class ProgressProtocolDecoder extends BaseProtocolDecoder {
                     for (int i = buf.readerIndex(); i < buf.readerIndex() + size; i++) {
                         byte b = buf.getByte(i);
                         hex.append(HEX_CHARS.charAt((b & 0xf0) >> 4));
-                        hex.append(HEX_CHARS.charAt((b & 0x0F)));
+                        hex.append(HEX_CHARS.charAt(b & 0x0F));
                     }
 
                     position.set("passenger", hex.toString());
diff --git a/src/org/traccar/protocol/XexunProtocolDecoder.java b/src/org/traccar/protocol/XexunProtocolDecoder.java
index 32d8eb427..5c719ece7 100644
--- a/src/org/traccar/protocol/XexunProtocolDecoder.java
+++ b/src/org/traccar/protocol/XexunProtocolDecoder.java
@@ -103,8 +103,8 @@ public class XexunProtocolDecoder extends BaseProtocolDecoder {
         Double longitude = Double.parseDouble(parser.group(index++));
         longitude += Double.parseDouble(parser.group(index++)) / 60;
         String hemisphere = parser.group(index++);
-        if (hemisphere != null) {
-            if (hemisphere.compareTo("W") == 0) longitude = -longitude;
+        if (hemisphere != null && hemisphere.compareTo("W") == 0) {
+            longitude = -longitude;
         }
         position.setLongitude(longitude);
 
diff --git a/src/org/traccar/protocol/YwtProtocolDecoder.java b/src/org/traccar/protocol/YwtProtocolDecoder.java
index be76d1d86..d4e402185 100644
--- a/src/org/traccar/protocol/YwtProtocolDecoder.java
+++ b/src/org/traccar/protocol/YwtProtocolDecoder.java
@@ -136,11 +136,10 @@ public class YwtProtocolDecoder extends BaseProtocolDecoder {
         position.set(Event.KEY_STATUS, parser.group(index++));
 
         // Send response
-        if (type.equals("KP") || type.equals("EP") || type.equals("EP")) {
-            if (channel != null) {
-                channel.write("%AT+" + type + "=" + reportId + "\r\n");
-            }
+        if ((type.equals("KP") || type.equals("EP") || type.equals("EP")) && channel != null) {
+            channel.write("%AT+" + type + "=" + reportId + "\r\n");
         }
+
         return position;
     }
 
diff --git a/src/org/traccar/web/AsyncServlet.java b/src/org/traccar/web/AsyncServlet.java
index eaab7abe8..9d68c959c 100644
--- a/src/org/traccar/web/AsyncServlet.java
+++ b/src/org/traccar/web/AsyncServlet.java
@@ -124,10 +124,8 @@ public class AsyncServlet extends BaseServlet {
             public void run(Timeout tmt) throws Exception {
                 synchronized (AsyncSession.this) {
                     logEvent("requestTimeout");
-                    if (!destroyed) {
-                        if (activeContext != null) {
-                            response();
-                        }
+                    if (!destroyed && activeContext != null) {
+                        response();
                     }
                 }
             }
diff --git a/src/org/traccar/web/JsonConverter.java b/src/org/traccar/web/JsonConverter.java
index 6b52fac20..5dc879ab8 100644
--- a/src/org/traccar/web/JsonConverter.java
+++ b/src/org/traccar/web/JsonConverter.java
@@ -34,6 +34,7 @@ import javax.json.JsonValue;
 import org.joda.time.DateTime;
 import org.joda.time.format.DateTimeFormatter;
 import org.joda.time.format.ISODateTimeFormat;
+import org.traccar.helper.Log;
 import org.traccar.model.Factory;
 import org.traccar.model.MiscFormatter;
 
@@ -81,6 +82,7 @@ public class JsonConverter {
                         method.invoke(object, MiscFormatter.fromJson(json.getJsonObject(name)));
                     }
                 } catch (IllegalAccessException | InvocationTargetException error) {
+                    Log.warning(error);
                 }
             }
         }
@@ -123,6 +125,7 @@ public class JsonConverter {
                         json.add(name, MiscFormatter.toJson((Map) method.invoke(object)));
                     }
                 } catch (IllegalAccessException | InvocationTargetException error) {
+                    Log.warning(error);
                 }
             }
         }
diff --git a/src/org/traccar/web/ServerServlet.java b/src/org/traccar/web/ServerServlet.java
index e2305bba4..7ed096bc6 100644
--- a/src/org/traccar/web/ServerServlet.java
+++ b/src/org/traccar/web/ServerServlet.java
@@ -27,7 +27,7 @@ public class ServerServlet extends BaseServlet {
 
         switch (command) {
             case "/get":
-                get(req, resp);
+                get(resp);
                 break;
             case "/update":
                 update(req, resp);
@@ -38,7 +38,7 @@ public class ServerServlet extends BaseServlet {
         return true;
     }
 
-    private void get(HttpServletRequest req, HttpServletResponse resp) throws Exception {
+    private void get(HttpServletResponse resp) throws Exception {
         sendResponse(resp.getWriter(), JsonConverter.objectToJson(
                     Context.getDataManager().getServer()));
     }