Program: 53900
Project: 53900
Buggy source:
@Override public void evaluate() throws Throwable {
  ProcessBuilder builder=new ProcessBuilder();
  builder.command(buildCommand());
  builder.redirectErrorStream(true);
  System.out.println("String_Node_Str" + System.getProperty("String_Node_Str"));
  System.out.println("String_Node_Str" + builder.command());
  Process process;
  try {
    process=builder.start();
  }
 catch (  IOException e) {
    return;
  }
  Scanner out=new Scanner(process.getInputStream());
  try {
    while (out.hasNextLine()) {
      String line=out.nextLine();
      if (line.startsWith(ForkedJUnit.JUNIT_OUTPUT_DELIMETER)) {
        String[] tokens=line.split(ForkedJUnit.JUNIT_OUTPUT_DELIMETER_REGEXP);
        String event=tokens[1];
        if ("String_Node_Str".equals(event)) {
          notifier.fireTestRunStarted(getDescription());
        }
 else         if ("String_Node_Str".equals(event)) {
          notifier.fireTestRunFinished(result);
        }
 else         if ("String_Node_Str".equals(event)) {
          Description ofTest=findDescription(getDescription(),tokens[2]);
          notifier.fireTestStarted(ofTest);
        }
 else         if ("String_Node_Str".equals(event)) {
          Description ofTest=findDescription(getDescription(),tokens[2]);
          notifier.fireTestFinished(ofTest);
        }
 else         if ("String_Node_Str".equals(event)) {
          Failure failure=toFailure(tokens[2],tokens[3],tokens[4],Arrays.asList(tokens).subList(5,tokens.length - 1));
          notifier.fireTestFailure(failure);
        }
 else         if ("String_Node_Str".equals(event)) {
          Failure failure=toFailure(tokens[2],tokens[3],tokens[4],Arrays.asList(tokens).subList(5,tokens.length - 1));
          notifier.fireTestAssumptionFailed(failure);
        }
 else         if ("String_Node_Str".equals(event)) {
          Description ofTest=findDescription(getDescription(),tokens[2]);
          notifier.fireTestIgnored(ofTest);
        }
      }
 else {
        System.out.println(line);
      }
    }
  }
  finally {
    out.close();
  }
  try {
    process.waitFor();
  }
 catch (  InterruptedException e) {
    process.destroy();
  }
}

Fixed version (ground truth):
@Override public void evaluate() throws Throwable {
  ProcessBuilder builder=new ProcessBuilder();
  builder.command(buildCommand());
  builder.redirectErrorStream(true);
  System.out.println("String_Node_Str" + System.getProperty("String_Node_Str"));
  System.out.println("String_Node_Str" + builder.command());
  Process process;
  try {
    process=builder.start();
  }
 catch (  IOException e) {
    System.out.println("String_Node_Str" + e.getMessage());
    e.printStackTrace();
    return;
  }
  final InputStream inputStream=process.getInputStream();
  final Scanner out=new Scanner(inputStream,DEFAULT_ENCODING);
  try {
    while (out.hasNextLine()) {
      String line=out.nextLine();
      if (line.startsWith(ForkedJUnit.JUNIT_OUTPUT_DELIMETER)) {
        String[] tokens=line.split(ForkedJUnit.JUNIT_OUTPUT_DELIMETER_REGEXP);
        String event=tokens[1];
        if ("String_Node_Str".equals(event)) {
          notifier.fireTestRunStarted(getDescription());
        }
 else         if ("String_Node_Str".equals(event)) {
          notifier.fireTestRunFinished(result);
        }
 else         if ("String_Node_Str".equals(event)) {
          Description ofTest=findDescription(getDescription(),tokens[2]);
          notifier.fireTestStarted(ofTest);
        }
 else         if ("String_Node_Str".equals(event)) {
          Description ofTest=findDescription(getDescription(),tokens[2]);
          notifier.fireTestFinished(ofTest);
        }
 else         if ("String_Node_Str".equals(event)) {
          Failure failure=toFailure(tokens[2],tokens[3],tokens[4],Arrays.asList(tokens).subList(5,tokens.length - 1));
          notifier.fireTestFailure(failure);
        }
 else         if ("String_Node_Str".equals(event)) {
          Failure failure=toFailure(tokens[2],tokens[3],tokens[4],Arrays.asList(tokens).subList(5,tokens.length - 1));
          notifier.fireTestAssumptionFailed(failure);
        }
 else         if ("String_Node_Str".equals(event)) {
          Description ofTest=findDescription(getDescription(),tokens[2]);
          notifier.fireTestIgnored(ofTest);
        }
      }
 else {
        System.out.println(line);
      }
    }
  }
  finally {
    out.close();
    close(inputStream);
  }
  try {
    process.waitFor();
  }
 catch (  InterruptedException e) {
    process.destroy();
  }
}