Add final

Author: minoskt

SensingKitLib/src/main/java/org/sensingkit/sensingkitlib/modules/SKAudioLevel.java

@@ -41,7 +41,7 @@ public class SKAudioLevel extends SKAbstractSensorModule {
 
     private final int bufferSize = AudioRecord.getMinBufferSize(sampleRate, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT) * bufferSizeFactor;
 
-    private AudioRecord audioRecord;
+    private final AudioRecord audioRecord;
 
     public SKAudioLevel(final Context context) throws SKException {
         super(context, SKSensorModuleType.AUDIO_LEVEL);

SensingKitLib/src/main/java/org/sensingkit/sensingkitlib/modules/SKAudioRecorder.java

@@ -39,7 +39,7 @@ public class SKAudioRecorder extends SKAbstractSensorModule {
 
     private static final String outputFile = Environment.getExternalStorageDirectory().getAbsolutePath() + "/recording.aac";
 
-    private MediaRecorder recorder;
+    private final MediaRecorder recorder;
 
     public SKAudioRecorder(final Context context) throws SKException {
         super(context, SKSensorModuleType.AUDIO_RECORDER);