Program: 36943
Project: 36943
Buggy source:
@Override protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  if (!MicrophonePermission.hasPermission(this)) {
    MicrophonePermission.askForPermission(this);
  }
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
  setContentView(R.layout.activity_call);
  mAnalyticsHelper=new AnalyticsHelper(((AnalyticsApplication)getApplication()).getDefaultTracker());
  mKeyPadViewContainer=(ViewGroup)findViewById(R.id.key_pad_container);
  mAudioManager=(AudioManager)getSystemService(Context.AUDIO_SERVICE);
  mAudioManager.setSpeakerphoneOn(false);
  mAudioManager.requestAudioFocus(this,AudioManager.STREAM_VOICE_CALL,AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
  setVolumeControlStream(AudioManager.STREAM_VOICE_CALL);
  mProximityHelper=new ProximitySensorHelper(this,this,findViewById(R.id.screen_off));
  mRingtone=RingtoneManager.getRingtone(this,Settings.System.DEFAULT_RINGTONE_URI);
  mVibrator=(Vibrator)getSystemService(VIBRATOR_SERVICE);
  mBroadcastManager=LocalBroadcastManager.getInstance(this);
  mStateView=(TextView)findViewById(R.id.state_text_view);
  mCallDurationView=(TextView)findViewById(R.id.duration_text_view);
  mConnected=false;
  onCallStatesUpdateButtons(SERVICE_STOPPED);
  Intent intent=getIntent();
  String type=intent.getType();
  if (type.equals(TYPE_INCOMING_CALL) || type.equals(TYPE_OUTGOING_CALL)) {
    String phoneNumber=intent.getStringExtra(PHONE_NUMBER);
    String contactName=intent.getStringExtra(CONTACT_NAME);
    displayCallInfo(phoneNumber,contactName);
    mIsIncomingCall=type.equals(TYPE_INCOMING_CALL);
    toggleCallStateButtonVisibility(type);
    if (mIsIncomingCall) {
      mIncomingCallIsRinging=true;
switch (mAudioManager.getRingerMode()) {
case AudioManager.RINGER_MODE_NORMAL:
        playRingtone(true);
      break;
case AudioManager.RINGER_MODE_VIBRATE:
    vibrate(true);
  break;
case AudioManager.RINGER_MODE_SILENT:
playRingtone(false);
vibrate(false);
break;
}
}
}
}

Fixed version (ground truth):
@Override protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  if (!MicrophonePermission.hasPermission(this)) {
    MicrophonePermission.askForPermission(this);
  }
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
  setContentView(R.layout.activity_call);
  mAnalyticsHelper=new AnalyticsHelper(((AnalyticsApplication)getApplication()).getDefaultTracker());
  mKeyPadViewContainer=(ViewGroup)findViewById(R.id.key_pad_container);
  mAudioManager=(AudioManager)getSystemService(Context.AUDIO_SERVICE);
  mAudioManager.setSpeakerphoneOn(false);
  mAudioManager.requestAudioFocus(this,AudioManager.STREAM_VOICE_CALL,AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
  setVolumeControlStream(AudioManager.STREAM_VOICE_CALL);
  mProximityHelper=new ProximitySensorHelper(this,this,findViewById(R.id.screen_off));
  mRingtone=RingtoneManager.getRingtone(this,Settings.System.DEFAULT_RINGTONE_URI);
  mVibrator=(Vibrator)getSystemService(VIBRATOR_SERVICE);
  mBroadcastManager=LocalBroadcastManager.getInstance(this);
  mStateView=(TextView)findViewById(R.id.state_text_view);
  mCallDurationView=(TextView)findViewById(R.id.duration_text_view);
  mConnected=false;
  onCallStatesUpdateButtons(SERVICE_STOPPED);
  Intent intent=getIntent();
  String type=intent.getType();
  if (type.equals(TYPE_INCOMING_CALL) || type.equals(TYPE_OUTGOING_CALL)) {
    String phoneNumber=intent.getStringExtra(PHONE_NUMBER);
    String contactName=intent.getStringExtra(CONTACT_NAME);
    displayCallInfo(phoneNumber,contactName);
    mIsIncomingCall=type.equals(TYPE_INCOMING_CALL);
    toggleCallStateButtonVisibility(type);
    if (mIsIncomingCall) {
      mIncomingCallIsRinging=true;
switch (mAudioManager.getRingerMode()) {
case AudioManager.RINGER_MODE_NORMAL:
        playRingtone(true);
      break;
case AudioManager.RINGER_MODE_VIBRATE:
    vibrate(true);
  break;
case AudioManager.RINGER_MODE_SILENT:
playRingtone(false);
vibrate(false);
break;
}
}
}
mProximityHelper.startSensor();
}