Program: 22925
Project: 22925
Buggy source:
/** 
 * Synthesizes the given text to a file using the specified parameters.
 * @param text The String of text that should be synthesized
 * @param params The list of parameters to be used. Can be null if no parameters are given. They are specified using a (key, value) pair, where the key can be {@link Engine#KEY_PARAM_UTTERANCE_ID}.
 * @param filename The string that gives the full output filename; it should be something like "/sdcard/myappsounds/mysound.wav".
 * @return Code indicating success or failure. See {@link #ERROR} and {@link #SUCCESS}.
 */
public int synthesizeToFile(String text,HashMap<String,String> params,String filename){
synchronized (mStartLock) {
    int result=ERROR;
    if (!mStarted) {
      return result;
    }
    try {
      if ((params != null) && (!params.isEmpty())) {
        String extra=params.get(Engine.KEY_PARAM_UTTERANCE_ID);
        if (extra != null) {
          mCachedParams[Engine.PARAM_POSITION_UTTERANCE_ID + 1]=extra;
        }
        extra=params.get(Engine.KEY_PARAM_ENGINE);
        if (extra != null) {
          mCachedParams[Engine.PARAM_POSITION_ENGINE + 1]=extra;
        }
      }
      if (mITts.synthesizeToFile(mPackageName,text,mCachedParams,filename)) {
        result=SUCCESS;
      }
    }
 catch (    RemoteException e) {
      Log.e("String_Node_Str","String_Node_Str");
      e.printStackTrace();
      mStarted=false;
      initTts();
    }
catch (    NullPointerException e) {
      Log.e("String_Node_Str","String_Node_Str");
      e.printStackTrace();
      mStarted=false;
      initTts();
    }
catch (    IllegalStateException e) {
      Log.e("String_Node_Str","String_Node_Str");
      e.printStackTrace();
      mStarted=false;
      initTts();
    }
 finally {
      resetCachedParams();
      return result;
    }
  }
}

Fixed version (ground truth):
/** 
 * Synthesizes the given text to a file using the specified parameters.
 * @param text The String of text that should be synthesized
 * @param params The list of parameters to be used. Can be null if no parameters are given. They are specified using a (key, value) pair, where the key can be {@link Engine#KEY_PARAM_UTTERANCE_ID}.
 * @param filename The string that gives the full output filename; it should be something like "/sdcard/myappsounds/mysound.wav".
 * @return Code indicating success or failure. See {@link #ERROR} and {@link #SUCCESS}.
 */
public int synthesizeToFile(String text,HashMap<String,String> params,String filename){
synchronized (mStartLock) {
    int result=ERROR;
    if (!mStarted) {
      return result;
    }
    try {
      if ((params != null) && (!params.isEmpty())) {
        String extra=params.get(Engine.KEY_PARAM_UTTERANCE_ID);
        if (extra != null) {
          mCachedParams[Engine.PARAM_POSITION_UTTERANCE_ID + 1]=extra;
        }
        extra=params.get(Engine.KEY_PARAM_ENGINE);
        if (extra != null) {
          mCachedParams[Engine.PARAM_POSITION_ENGINE + 1]=extra;
        }
      }
      result=mITts.synthesizeToFile(mPackageName,text,mCachedParams,filename) ? SUCCESS : ERROR;
    }
 catch (    RemoteException e) {
      Log.e("String_Node_Str","String_Node_Str");
      e.printStackTrace();
      mStarted=false;
      initTts();
    }
catch (    NullPointerException e) {
      Log.e("String_Node_Str","String_Node_Str");
      e.printStackTrace();
      mStarted=false;
      initTts();
    }
catch (    IllegalStateException e) {
      Log.e("String_Node_Str","String_Node_Str");
      e.printStackTrace();
      mStarted=false;
      initTts();
    }
 finally {
      resetCachedParams();
      return result;
    }
  }
}