Code cleanup using AndroidStudio's Analyze feature.

src/main/java/de/dennisguse/opentracks/services/handlers/GpsStatus.java

@@ -25,7 +25,7 @@ class GpsStatus {
 
     private GpsStatusValue gpsStatus = GpsStatusValue.GPS_NONE;
     private GpsStatusListener client;
-    private Context context;
+    private final Context context;
 
     // Last location. It can be null.
     private Location lastLocation = null;
@@ -51,7 +51,7 @@ class GpsStatus {
         }
     }
 
-    private Handler gpsStatusHandler;
+    private final Handler gpsStatusHandler;
     private GpsStatusRunner gpsStatusRunner = null;
 
     /**

src/main/java/de/dennisguse/opentracks/services/handlers/HandlerServer.java

@@ -12,7 +12,7 @@ import de.dennisguse.opentracks.content.data.TrackPoint;
 
 public class HandlerServer {
 
-    private static String TAG = HandlerServer.class.getSimpleName();
+    private static final String TAG = HandlerServer.class.getSimpleName();
 
     private final LocationHandler locationHandler;
     private final HandlerServerInterface service;