Program: 145851
Project: 145851
Buggy source:
public String getNmeaSentence(String GPXXX) throws SensorReadFailedException {
  char currentChar=0;
  String sentence="String_Node_Str";
  if (!supportedNmeaSentences.contains(GPXXX)) {
    throw new SensorReadFailedException("String_Node_Str" + "String_Node_Str" + GPXXX + "String_Node_Str");
  }
  try {
    serial.open(Serial.DEFAULT_COM_PORT,9600);
    try {
      Thread.sleep(1500);
    }
 catch (    InterruptedException ex) {
      Thread.currentThread().interrupt();
    }
    if (serial.availableBytes() == 0) {
      throw new SensorReadFailedException("String_Node_Str" + "String_Node_Str");
    }
    for (int i=0; true; i++) {
      sentence="String_Node_Str";
      for (int j=0; true; j++) {
        currentChar=serial.read();
        if (currentChar == '$') {
          sentence+=currentChar;
          break;
        }
 else         if (j == 200) {
          throw new SensorReadFailedException("String_Node_Str");
        }
      }
      for (int j=0; true; j++) {
        currentChar=serial.read();
        if (currentChar == '$') {
          break;
        }
        sentence+=currentChar;
        if (j == 200) {
          throw new SensorReadFailedException("String_Node_Str");
        }
      }
      if (sentence.length() >= 6 && sentence.substring(1,6).equals(GPXXX)) {
        break;
      }
 else       if (i == 20) {
        throw new SensorReadFailedException("String_Node_Str" + GPXXX + "String_Node_Str");
      }
    }
  }
 catch (  UnsatisfiedLinkError error) {
    throw new SensorReadFailedException("String_Node_Str");
  }
catch (  SerialPortException ex) {
    throw new SensorReadFailedException("String_Node_Str");
  }
catch (  IllegalStateException ex) {
    throw new SensorReadFailedException("String_Node_Str");
  }
 finally {
    if (serial.isOpen()) {
      try {
        serial.close();
      }
 catch (      IllegalStateException ex) {
        logger.error("String_Node_Str");
      }
    }
  }
  return sentence;
}

Fixed version (ground truth):
public String getNmeaSentence(String GPXXX) throws SensorReadFailedException {
  char currentChar=0;
  String sentence="String_Node_Str";
  if (!supportedNmeaSentences.contains(GPXXX)) {
    throw new SensorReadFailedException("String_Node_Str" + "String_Node_Str" + GPXXX + "String_Node_Str");
  }
  try {
    serial.open(Serial.DEFAULT_COM_PORT,9600);
    try {
      Thread.sleep(1500);
    }
 catch (    InterruptedException ex) {
      Thread.currentThread().interrupt();
    }
    if (serial.availableBytes() == 0) {
      throw new SensorReadFailedException("String_Node_Str" + "String_Node_Str");
    }
    for (int i=0; true; i++) {
      sentence="String_Node_Str";
      for (int j=0; true; j++) {
        currentChar=serial.read();
        if (currentChar == '$') {
          sentence+=currentChar;
          break;
        }
 else         if (j == 250) {
          throw new SensorReadFailedException("String_Node_Str");
        }
      }
      for (int j=0; true; j++) {
        currentChar=serial.read();
        if (currentChar == '$') {
          break;
        }
        sentence+=currentChar;
        if (j == 250) {
          throw new SensorReadFailedException("String_Node_Str");
        }
      }
      if (sentence.length() >= 6 && sentence.substring(1,6).equals(GPXXX)) {
        break;
      }
 else       if (i == 30) {
        throw new SensorReadFailedException("String_Node_Str" + GPXXX + "String_Node_Str");
      }
    }
  }
 catch (  UnsatisfiedLinkError error) {
    throw new SensorReadFailedException("String_Node_Str");
  }
catch (  SerialPortException ex) {
    throw new SensorReadFailedException("String_Node_Str");
  }
catch (  IllegalStateException ex) {
    throw new SensorReadFailedException("String_Node_Str");
  }
 finally {
    if (serial.isOpen()) {
      try {
        serial.close();
      }
 catch (      IllegalStateException ex) {
        logger.error("String_Node_Str");
      }
    }
  }
  return sentence;
}