Program: 8743
Project: 8743
Buggy source:
/** 
 * Entry point of the demo application.
 * @param args command line arguments
 */
public static void main(String[] args){
  StopwatchSample[] results=BenchmarkUtils.run(2,5,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        System.currentTimeMillis();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        System.nanoTime();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        long ms=System.currentTimeMillis();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        long ns=System.nanoTime();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      Stopwatch simon=SimonManager.getStopwatch(null);
      for (int i=0; i < LOOP; i++) {
        simon.start();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      Stopwatch simon=SimonManager.getStopwatch(null);
      for (int i=0; i < LOOP; i++) {
        simon.start().stop();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        SimonManager.getStopwatch("String_Node_Str").start().stop();
      }
    }
  }
);
  System.out.println("String_Node_Str" + GoogleChartImageGenerator.barChart(results,"String_Node_Str",SimonUtils.NANOS_IN_MILLIS,"String_Node_Str",false));
  System.out.println("String_Node_Str" + GoogleChartImageGenerator.barChart(results,"String_Node_Str",SimonUtils.NANOS_IN_MILLIS,"String_Node_Str",true));
}

Fixed version (ground truth):
/** 
 * Entry point of the demo application.
 * @param args command line arguments
 */
public static void main(String[] args){
  ExampleUtils.fillManagerWithSimons(100000);
  StopwatchSample[] results=BenchmarkUtils.run(2,5,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        System.currentTimeMillis();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        System.nanoTime();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        long ms=System.currentTimeMillis();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        long ns=System.nanoTime();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      Stopwatch simon=SimonManager.getStopwatch(null);
      for (int i=0; i < LOOP; i++) {
        simon.start();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      Stopwatch simon=SimonManager.getStopwatch(null);
      for (int i=0; i < LOOP; i++) {
        simon.start().stop();
      }
    }
  }
,new BenchmarkUtils.Task("String_Node_Str"){
    @Override public void perform() throws Exception {
      for (int i=0; i < LOOP; i++) {
        SimonManager.getStopwatch("String_Node_Str").start().stop();
      }
    }
  }
);
  System.out.println("String_Node_Str" + GoogleChartImageGenerator.barChart(results,"String_Node_Str",SimonUtils.NANOS_IN_MILLIS,"String_Node_Str",false));
  System.out.println("String_Node_Str" + GoogleChartImageGenerator.barChart(results,"String_Node_Str",SimonUtils.NANOS_IN_MILLIS,"String_Node_Str",true));
}