5 files changed, 23 insertions, 11 deletions
diff --git a/src/main/java/org/traccar/Context.java b/src/main/java/org/traccar/Context.java
index 340cdb6a5..7e38a0e41 100644
--- a/src/main/java/org/traccar/Context.java
+++ b/src/main/java/org/traccar/Context.java
@@ -258,7 +258,7 @@ public final class Context {
                 config.getLong("report.trip.minimalNoDataDuration", 3600) * 1000,
                 config.getBoolean("report.trip.useIgnition"),
                 config.getBoolean(Keys.EVENT_MOTION_PROCESS_INVALID_POSITIONS),
-                config.getDouble(Keys.EVENT_MOTION_SPEED_THRESHOLD, 0.01));
+                config.getDouble(Keys.EVENT_MOTION_SPEED_THRESHOLD));
     }
 
     private static class ObjectMapperContextResolver implements ContextResolver<ObjectMapper> {
diff --git a/src/main/java/org/traccar/config/Config.java b/src/main/java/org/traccar/config/Config.java
index 1231918c6..c6d87bfd6 100644
--- a/src/main/java/org/traccar/config/Config.java
+++ b/src/main/java/org/traccar/config/Config.java
@@ -134,16 +134,22 @@ public class Config {
         return hasKey(key) ? Long.parseLong(getString(key)) : defaultValue;
     }
 
-    public double getDouble(ConfigKey key) {
-        return getDouble(key, 0.0);
-    }
-
-    public double getDouble(ConfigKey key, double defaultValue) {
-        return hasKey(key.getKey()) ? Double.parseDouble(getString(key.getKey())) : defaultValue;
+    public double getDouble(ConfigKey<Double> key) {
+        String value = getString(key.getKey());
+        if (value != null) {
+            return Double.parseDouble(value);
+        } else {
+            Double defaultValue = key.getDefaultValue();
+            if (defaultValue != null) {
+                return defaultValue;
+            } else {
+                return 0;
+            }
+        }
     }
 
     @VisibleForTesting
-    public void setString(ConfigKey key, String value) {
+    public void setString(ConfigKey<?> key, String value) {
         properties.put(key.getKey(), value);
     }
 
diff --git a/src/main/java/org/traccar/config/ConfigKey.java b/src/main/java/org/traccar/config/ConfigKey.java
index 926b46851..cc095c087 100644
--- a/src/main/java/org/traccar/config/ConfigKey.java
+++ b/src/main/java/org/traccar/config/ConfigKey.java
@@ -37,4 +37,8 @@ public class ConfigKey<T> {
         return key;
     }
 
+    public T getDefaultValue() {
+        return defaultValue;
+    }
+
 }
diff --git a/src/main/java/org/traccar/config/Keys.java b/src/main/java/org/traccar/config/Keys.java
index b6b78d4d7..dc204b2f5 100644
--- a/src/main/java/org/traccar/config/Keys.java
+++ b/src/main/java/org/traccar/config/Keys.java
@@ -91,7 +91,8 @@ public final class Keys {
      */
     public static final ConfigKey<Double> EVENT_MOTION_SPEED_THRESHOLD = new ConfigKey<>(
             "event.motion.speedThreshold",
-            Collections.singletonList(KeyType.FILE));
+            Collections.singletonList(KeyType.FILE),
+            0.01);
 
     /**
      * Global polyline geofence distance. Within that distance from the polyline, point is considered within the
@@ -99,7 +100,8 @@ public final class Keys {
      */
     public static final ConfigKey<Double> GEOFENCE_POLYLINE_DISTANCE = new ConfigKey<>(
             "geofence.polylineDistance",
-            Collections.singletonList(KeyType.FILE));
+            Collections.singletonList(KeyType.FILE),
+            25.0);
 
     /**
      * Path to the database driver JAR file. Traccar includes drivers for MySQL, PostgreSQL and H2 databases. If you use
diff --git a/src/main/java/org/traccar/model/Geofence.java b/src/main/java/org/traccar/model/Geofence.java
index 835ea7c22..85f392f99 100644
--- a/src/main/java/org/traccar/model/Geofence.java
+++ b/src/main/java/org/traccar/model/Geofence.java
@@ -68,7 +68,7 @@ public class Geofence extends ScheduledModel {
         } else if (area.startsWith("LINESTRING")) {
             final double distance = getDouble("polylineDistance");
             geometry = new GeofencePolyline(area, distance > 0 ? distance
-                    : Context.getConfig().getDouble(Keys.GEOFENCE_POLYLINE_DISTANCE, 25));
+                    : Context.getConfig().getDouble(Keys.GEOFENCE_POLYLINE_DISTANCE));
         } else {
             throw new ParseException("Unknown geometry type", 0);
         }