Program: 129681
Project: 129681
Buggy source:
public void onTestListener(ITestContext context,final String imgFilePath){
  TestRunner runner=(TestRunner)context;
  runner.addListener(new TestListenerAdapter(){
    @Override public void onTestFailure(    ITestResult tr){
      Reporter.setCurrentTestResult(tr);
      String testCaseInfo=this.getTestCaseInfo(tr);
      String methodName=tr.getMethod().getMethodName();
      int lineNumber=0;
      for (      StackTraceElement element : tr.getThrowable().getStackTrace()) {
        if (methodName.equals(element.getMethodName())) {
          lineNumber=element.getLineNumber();
        }
      }
      String name=testCaseInfo + "String_Node_Str" + lineNumber+ "String_Node_Str";
      try {
        captureScreenshot(imgFilePath + File.separator + name);
        System.out.println(imgFilePath + File.separator + name);
      }
 catch (      Exception e) {
      }
      this.setTestCaseResultInfo(failedTestCases,testCaseInfo,Result.f);
    }
    @Override public void onTestSuccess(    ITestResult tr){
      super.onTestSuccess(tr);
      Reporter.setCurrentTestResult(tr);
      String testCaseInfo=this.getTestCaseInfo(tr);
      this.setTestCaseResultInfo(successTestCases,testCaseInfo,Result.p);
    }
    @Override public void onTestStart(    ITestResult tr){
      String testCaseInfo=this.getTestCaseInfo(tr);
      try {
        testCaseScreenRecorder=testCaseRecorder.getScreenRecorder(getAbsoluteFolderPath("String_Node_Str") + "String_Node_Str" + testCaseInfo);
        logger.info(getAbsoluteFolderPath("String_Node_Str") + "String_Node_Str" + testCaseInfo);
        if (testCaseScreenRecorder == null) {
          logger.info("String_Node_Str");
        }
        testCaseScreenRecorder.start();
      }
 catch (      Exception e) {
        logger.info(e.getMessage());
        e.printStackTrace();
      }
      super.onTestStart(tr);
    }
    @Override public void onFinish(    ITestContext testContext){
      try {
        if (testCaseScreenRecorder != null) {
          testCaseScreenRecorder.stop();
        }
      }
 catch (      IOException e) {
        e.printStackTrace();
      }
 finally {
        testCaseScreenRecorder=null;
      }
      super.onFinish(testContext);
    }
    public String getTestCaseInfo(    ITestResult tr){
      IClass clazz=tr.getTestClass();
      String className=clazz.getRealClass().getSimpleName();
      String methodName=tr.getMethod().getMethodName();
      String parameter="String_Node_Str";
      try {
        for (        Object param : tr.getParameters()) {
          String par=(String)param;
          parameter=parameter + "String_Node_Str" + par.replaceAll("String_Node_Str","String_Node_Str")+ "String_Node_Str";
        }
      }
 catch (      Exception ex) {
        for (        Object param : tr.getParameters()) {
        }
        ex.printStackTrace();
      }
      if (parameter != null && !"String_Node_Str".equals(parameter.trim())) {
        parameter=parameter.substring(1);
      }
      return className + "String_Node_Str" + methodName+ "String_Node_Str"+ parameter+ "String_Node_Str";
    }
    public void setTestCaseResultInfo(    List<TestCase> testcases,    String testCaseInfo,    Result result){
      TestCase testCase=new TestCase();
      String testlinkProject=System.getProperty("String_Node_Str");
      String testlinkId=System.getProperty("String_Node_Str");
      int id=Integer.parseInt(testlinkId.substring(testlinkProject.length() + 1));
      testCase.setId(id);
      testCase.setResult(result);
      testCase.setNote(testCaseInfo + "String_Node_Str");
      testCase.setComment(testCaseInfo);
      testcases.add(testCase);
    }
  }
);
}

Fixed version (ground truth):
public void onTestListener(ITestContext context,final String imgFilePath){
  TestRunner runner=(TestRunner)context;
  runner.addListener(new TestListenerAdapter(){
    @Override public void onTestFailure(    ITestResult tr){
      Reporter.setCurrentTestResult(tr);
      String testCaseInfo=this.getTestCaseInfo(tr);
      String methodName=tr.getMethod().getMethodName();
      int lineNumber=0;
      for (      StackTraceElement element : tr.getThrowable().getStackTrace()) {
        if (methodName.equals(element.getMethodName())) {
          lineNumber=element.getLineNumber();
        }
      }
      String name=testCaseInfo + "String_Node_Str" + lineNumber+ "String_Node_Str";
      try {
        captureScreenshot(imgFilePath + File.separator + name);
        System.out.println(imgFilePath + File.separator + name);
      }
 catch (      Exception e) {
      }
      this.setTestCaseResultInfo(failedTestCases,testCaseInfo,Result.f);
    }
    @Override public void onTestSuccess(    ITestResult tr){
      super.onTestSuccess(tr);
      Reporter.setCurrentTestResult(tr);
      String testCaseInfo=this.getTestCaseInfo(tr);
      this.setTestCaseResultInfo(successTestCases,testCaseInfo,Result.p);
    }
    @Override public void onTestStart(    ITestResult tr){
      String testCaseInfo=this.getTestCaseInfo(tr);
      try {
        testCaseScreenRecorder=testCaseRecorder.getScreenRecorder(getAbsoluteFolderPath("String_Node_Str") + "String_Node_Str" + testCaseInfo);
        logger.info(getAbsoluteFolderPath("String_Node_Str") + "String_Node_Str" + testCaseInfo);
        if (testCaseScreenRecorder == null) {
          logger.info("String_Node_Str");
        }
        testCaseScreenRecorder.start();
      }
 catch (      Exception e) {
        logger.info(e.getMessage());
        e.printStackTrace();
      }
      super.onTestStart(tr);
    }
    @Override public void onFinish(    ITestContext testContext){
      try {
        if (testCaseScreenRecorder != null && testCaseScreenRecorder.getState() == State.RECORDING) {
          testCaseScreenRecorder.stop();
        }
      }
 catch (      IOException e) {
        e.printStackTrace();
      }
 finally {
        testCaseScreenRecorder=null;
      }
      super.onFinish(testContext);
    }
    public String getTestCaseInfo(    ITestResult tr){
      IClass clazz=tr.getTestClass();
      String className=clazz.getRealClass().getSimpleName();
      String methodName=tr.getMethod().getMethodName();
      String parameter="String_Node_Str";
      try {
        for (        Object param : tr.getParameters()) {
          String par=(String)param;
          parameter=parameter + "String_Node_Str" + par.replaceAll("String_Node_Str","String_Node_Str")+ "String_Node_Str";
        }
      }
 catch (      Exception ex) {
        for (        Object param : tr.getParameters()) {
        }
        ex.printStackTrace();
      }
      if (parameter != null && !"String_Node_Str".equals(parameter.trim())) {
        parameter=parameter.substring(1);
      }
      return className + "String_Node_Str" + methodName+ "String_Node_Str"+ parameter+ "String_Node_Str";
    }
    public void setTestCaseResultInfo(    List<TestCase> testcases,    String testCaseInfo,    Result result){
      TestCase testCase=new TestCase();
      String testlinkProject=System.getProperty("String_Node_Str");
      String testlinkId=System.getProperty("String_Node_Str");
      int id=Integer.parseInt(testlinkId.substring(testlinkProject.length() + 1));
      testCase.setId(id);
      testCase.setResult(result);
      testCase.setNote(testCaseInfo + "String_Node_Str");
      testCase.setComment(testCaseInfo);
      testcases.add(testCase);
    }
  }
);
}