Program: 184856
Project: 184856
Buggy source:
/** 
 * Answer the currently-ringing call.
 * @return true if we answered the call, or false if there wasn'tactually a ringing incoming call, or some other error occurred.
 * @see answerAndEndHolding()
 * @see answerAndEndActive()
 */
static boolean answerCall(Phone phone){
  if (DBG)   log("String_Node_Str");
  PhoneApp.getInstance().getRinger().stopRing();
  PhoneUtils.setAudioControlState(PhoneUtils.AUDIO_OFFHOOK);
  boolean answered=false;
  Call call=phone.getRingingCall();
  if (phone.getPhoneName().equals("String_Node_Str")) {
    if (call.getState() == Call.State.WAITING) {
      final CallNotifier notifier=PhoneApp.getInstance().notifier;
      notifier.stopSignalInfoTone();
    }
  }
  if (call != null && call.isRinging()) {
    if (DBG)     log("String_Node_Str" + call.getState());
    try {
      phone.acceptCall();
      answered=true;
      setAudioMode(phone.getContext(),AudioManager.MODE_IN_CALL);
      if (phone.getPhoneName().equals("String_Node_Str")) {
        PhoneApp app=PhoneApp.getInstance();
        if (app.cdmaPhoneCallState.getCurrentCallState() == CdmaPhoneCallState.PhoneCallState.IDLE) {
          app.cdmaPhoneCallState.setCurrentCallState(CdmaPhoneCallState.PhoneCallState.SINGLE_ACTIVE);
        }
 else {
          app.cdmaPhoneCallState.setCurrentCallState(CdmaPhoneCallState.PhoneCallState.CONF_CALL);
          BluetoothHandsfree bthf=PhoneApp.getInstance().getBluetoothHandsfree();
          if (bthf != null) {
            bthf.cdmaSetSecondCallState(true);
          }
        }
      }
    }
 catch (    CallStateException ex) {
      Log.w(LOG_TAG,"String_Node_Str" + ex,ex);
    }
  }
  return answered;
}

Fixed version (ground truth):
/** 
 * Answer the currently-ringing call.
 * @return true if we answered the call, or false if there wasn'tactually a ringing incoming call, or some other error occurred.
 * @see answerAndEndHolding()
 * @see answerAndEndActive()
 */
static boolean answerCall(Phone phone){
  if (DBG)   log("String_Node_Str");
  PhoneApp.getInstance().getRinger().stopRing();
  PhoneUtils.setAudioControlState(PhoneUtils.AUDIO_OFFHOOK);
  boolean answered=false;
  Call call=phone.getRingingCall();
  if (phone.getPhoneName().equals("String_Node_Str")) {
    if (call.getState() == Call.State.WAITING) {
      final CallNotifier notifier=PhoneApp.getInstance().notifier;
      notifier.stopSignalInfoTone();
    }
  }
  if (call != null && call.isRinging()) {
    if (DBG)     log("String_Node_Str" + call.getState());
    try {
      if (phone.getPhoneName().equals("String_Node_Str")) {
        PhoneApp app=PhoneApp.getInstance();
        if (app.cdmaPhoneCallState.getCurrentCallState() == CdmaPhoneCallState.PhoneCallState.IDLE) {
          app.cdmaPhoneCallState.setCurrentCallState(CdmaPhoneCallState.PhoneCallState.SINGLE_ACTIVE);
        }
 else {
          app.cdmaPhoneCallState.setCurrentCallState(CdmaPhoneCallState.PhoneCallState.CONF_CALL);
          BluetoothHandsfree bthf=PhoneApp.getInstance().getBluetoothHandsfree();
          if (bthf != null) {
            bthf.cdmaSetSecondCallState(true);
          }
        }
      }
      phone.acceptCall();
      answered=true;
      setAudioMode(phone.getContext(),AudioManager.MODE_IN_CALL);
    }
 catch (    CallStateException ex) {
      Log.w(LOG_TAG,"String_Node_Str" + ex,ex);
    }
  }
  return answered;
}