Program: 76220
Project: 76220
Buggy source:
/** 
 * Open the specified file, if any.  Note changes to the fileName parameter during execution are ignored until the next execution.
 * @exception IllegalActionException If the file cannot be opened,or if the parent class throws it.
 */
public void initialize() throws IllegalActionException {
  super.initialize();
  System.out.println("String_Node_Str");
  if (((StringToken)sink.getToken()).toString() == "String_Node_Str") {
    System.out.println("String_Node_Str");
    String pathNameString=((StringToken)pathName.getToken()).toString();
    int sampleRateInt=((IntToken)sampleRate.getToken()).intValue();
    int sampleSizeInBitsInt=((IntToken)sampleSizeInBits.getToken()).intValue();
    int channelsInt=((IntToken)channels.getToken()).intValue();
    int bufferSizeInt=((IntToken)bufferSize.getToken()).intValue();
    _soundPlayback=new SoundPlayback(pathNameString,sampleRateInt,sampleSizeInBitsInt,channelsInt,bufferSizeInt,_consumptionRate);
  }
 else   if (((StringToken)sink.getToken()).toString() == "String_Node_Str") {
    System.out.println("String_Node_Str");
    int sampleRateInt=((IntToken)sampleRate.getToken()).intValue();
    int sampleSizeInBitsInt=((IntToken)sampleSizeInBits.getToken()).intValue();
    int channelsInt=((IntToken)channels.getToken()).intValue();
    int bufferSizeInt=((IntToken)bufferSize.getToken()).intValue();
    _soundPlayback=new SoundPlayback(sampleRateInt,sampleSizeInBitsInt,channelsInt,bufferSizeInt,_consumptionRate);
    System.out.println("String_Node_Str");
  }
 else   if (((StringToken)sink.getToken()).toString() == "String_Node_Str") {
  }
 else {
    throw new IllegalActionException("String_Node_Str" + sink.getFullName() + "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str");
  }
  _soundPlayback.startPlayback();
  System.out.println("String_Node_Str");
}

Fixed version (ground truth):
/** 
 * Open the specified file, if any.  Note changes to the fileName parameter during execution are ignored until the next execution.
 * @exception IllegalActionException If the file cannot be opened,or if the parent class throws it.
 */
public void initialize() throws IllegalActionException {
  super.initialize();
  System.out.println("String_Node_Str");
  if (((StringToken)sink.getToken()).toString() == "String_Node_Str") {
    System.out.println("String_Node_Str");
    String pathNameString=((StringToken)pathName.getToken()).toString();
    int sampleRateInt=((IntToken)sampleRate.getToken()).intValue();
    int sampleSizeInBitsInt=((IntToken)sampleSizeInBits.getToken()).intValue();
    int channelsInt=((IntToken)channels.getToken()).intValue();
    int bufferSizeInt=((IntToken)bufferSize.getToken()).intValue();
    _soundPlayback=new SoundPlayback(pathNameString,sampleRateInt,sampleSizeInBitsInt,channelsInt,bufferSizeInt,_consumptionRate);
  }
 else   if (((StringToken)sink.getToken()).toString() == "String_Node_Str") {
    System.out.println("String_Node_Str");
    int sampleRateInt=((IntToken)sampleRate.getToken()).intValue();
    int sampleSizeInBitsInt=((IntToken)sampleSizeInBits.getToken()).intValue();
    int channelsInt=((IntToken)channels.getToken()).intValue();
    int bufferSizeInt=((IntToken)bufferSize.getToken()).intValue();
    _soundPlayback=new SoundPlayback(sampleRateInt,sampleSizeInBitsInt,channelsInt,bufferSizeInt,_consumptionRate);
    System.out.println("String_Node_Str");
  }
 else   if (((StringToken)sink.getToken()).toString() == "String_Node_Str") {
  }
 else {
    throw new IllegalActionException("String_Node_Str" + sink.getFullName() + "String_Node_Str"+ "String_Node_Str"+ "String_Node_Str");
  }
  _soundPlayback.startPlayback();
  System.out.println("String_Node_Str");
  _audioTokenArray=new DoubleToken[_consumptionRate];
}