Automated code analysis improvements.

src/main/java/de/dennisguse/opentracks/content/provider/ShareContentProvider.java

@@ -101,7 +101,7 @@ public class ShareContentProvider extends CustomContentProvider implements ICont
 
         long[] trackIds = new long[uriTrackIds.length];
         for (int i = 0; i < trackIds.length; i++) {
-            trackIds[i] = Long.valueOf(uriTrackIds[i]);
+            trackIds[i] = Long.parseLong(uriTrackIds[i]);
         }
         return trackIds;
     }

src/main/java/de/dennisguse/opentracks/io/file/exporter/FileTrackExporter.java

@@ -206,7 +206,7 @@ public class FileTrackExporter implements TrackExporter {
      *
      * @author Jimmy Shih
      */
-    private class TrackWriterTrackPointFactory extends TrackPointFactory {
+    private static class TrackWriterTrackPointFactory extends TrackPointFactory {
         TrackPoint currentTrackPoint;
         TrackPoint lastTrackPoint;
 

src/main/java/de/dennisguse/opentracks/io/file/importer/AbstractFileTrackImporter.java

@@ -464,7 +464,7 @@ abstract class AbstractFileTrackImporter extends DefaultHandler implements Track
      * @author Jimmy Shih
      */
     // TODO Why private inner class?
-    private class TrackData {
+    private static class TrackData {
         // The current track
         final Track track = new Track();
 

src/main/java/de/dennisguse/opentracks/io/file/importer/KmlFileTrackImporter.java

@@ -297,7 +297,7 @@ public class KmlFileTrackImporter extends AbstractFileTrackImporter {
         }
         float value;
         try {
-            value = Float.valueOf(content);
+            value = Float.parseFloat(content);
         } catch (NumberFormatException e) {
             throw new SAXException(createErrorMessage("Unable to parse gx:value:" + content), e);
         }

src/main/java/de/dennisguse/opentracks/settings/BluetoothLeAdapter.java

@@ -72,7 +72,7 @@ public class BluetoothLeAdapter extends BaseAdapter {
         return devices.get(index);
     }
 
-    public class Device {
+    public static class Device {
         private String name;
         private final String address;