Program: 184862
Project: 184862
Buggy source:
/** 
 * Updates all our public boolean flags based on the current state of the Phone.
 */
public void update(){
  final boolean hasRingingCall=!mPhone.getRingingCall().isIdle();
  final Call fgCall=mPhone.getForegroundCall();
  final Call.State fgCallState=fgCall.getState();
  final boolean hasActiveCall=!fgCall.isIdle();
  final boolean hasHoldingCall=!mPhone.getBackgroundCall().isIdle();
  manageConferenceVisible=PhoneUtils.isConferenceCall(fgCall);
  manageConferenceEnabled=!mInCallScreen.isManageConferenceMode();
  canAddCall=PhoneUtils.okToAddCall(mPhone);
  canSwap=PhoneUtils.okToSwapCalls(mPhone);
  canMerge=PhoneUtils.okToMergeCalls(mPhone);
  if (mInCallScreen.isBluetoothAvailable()) {
    bluetoothEnabled=true;
    bluetoothIndicatorOn=mInCallScreen.isBluetoothAudioConnectedOrPending();
  }
 else {
    bluetoothEnabled=false;
    bluetoothIndicatorOn=false;
  }
  if (PhoneApp.getInstance().isHeadsetPlugged()) {
    speakerEnabled=false;
    speakerOn=false;
  }
 else {
    speakerEnabled=true;
    speakerOn=PhoneUtils.isSpeakerOn(mInCallScreen);
  }
  if (mPhone.getPhoneName().equals("String_Node_Str")) {
    Connection c=fgCall.getLatestConnection();
    boolean isEmergencyCall=PhoneNumberUtils.isEmergencyNumber(c.getAddress());
    if (isEmergencyCall) {
      canMute=false;
      muteIndicatorOn=false;
    }
 else {
      canMute=(fgCallState == Call.State.ACTIVE);
      muteIndicatorOn=PhoneUtils.getMute(mPhone);
    }
  }
 else {
    canMute=(fgCallState == Call.State.ACTIVE);
    muteIndicatorOn=PhoneUtils.getMute(mPhone);
  }
  dialpadEnabled=mInCallScreen.okToShowDialpad();
  onHold=hasHoldingCall && !hasActiveCall;
  canHold=!((hasActiveCall && hasHoldingCall) || (hasActiveCall && (fgCallState != Call.State.ACTIVE)));
  if (DBG)   dumpState();
}

Fixed version (ground truth):
/** 
 * Updates all our public boolean flags based on the current state of the Phone.
 */
public void update(){
  final boolean hasRingingCall=!mPhone.getRingingCall().isIdle();
  final Call fgCall=mPhone.getForegroundCall();
  final Call.State fgCallState=fgCall.getState();
  final boolean hasActiveCall=!fgCall.isIdle();
  final boolean hasHoldingCall=!mPhone.getBackgroundCall().isIdle();
  manageConferenceVisible=PhoneUtils.isConferenceCall(fgCall);
  manageConferenceEnabled=!mInCallScreen.isManageConferenceMode();
  canAddCall=PhoneUtils.okToAddCall(mPhone);
  canSwap=PhoneUtils.okToSwapCalls(mPhone);
  canMerge=PhoneUtils.okToMergeCalls(mPhone);
  if (mInCallScreen.isBluetoothAvailable()) {
    bluetoothEnabled=true;
    bluetoothIndicatorOn=mInCallScreen.isBluetoothAudioConnectedOrPending();
  }
 else {
    bluetoothEnabled=false;
    bluetoothIndicatorOn=false;
  }
  if (PhoneApp.getInstance().isHeadsetPlugged()) {
    speakerEnabled=false;
    speakerOn=false;
  }
 else {
    speakerEnabled=true;
    speakerOn=PhoneUtils.isSpeakerOn(mInCallScreen);
  }
  if (mPhone.getPhoneName().equals("String_Node_Str")) {
    Connection c=fgCall.getLatestConnection();
    boolean isEmergencyCall=false;
    if (c != null)     isEmergencyCall=PhoneNumberUtils.isEmergencyNumber(c.getAddress());
    if (isEmergencyCall) {
      canMute=false;
      muteIndicatorOn=false;
    }
 else {
      canMute=(fgCallState == Call.State.ACTIVE);
      muteIndicatorOn=PhoneUtils.getMute(mPhone);
    }
  }
 else {
    canMute=(fgCallState == Call.State.ACTIVE);
    muteIndicatorOn=PhoneUtils.getMute(mPhone);
  }
  dialpadEnabled=mInCallScreen.okToShowDialpad();
  onHold=hasHoldingCall && !hasActiveCall;
  canHold=!((hasActiveCall && hasHoldingCall) || (hasActiveCall && (fgCallState != Call.State.ACTIVE)));
  if (DBG)   dumpState();
}