output: #fixed code
                                  public void testSimpleHttpPostsChunked() throws Exception {
          HttpRequestExecutionHandler requestExecutionHandler = new RequestExecutionHandler() {
  
              @Override
              protected HttpRequest generateRequest(Job testjob) {
                  String s = testjob.getPattern() + "x" + testjob.getCount();
                  HttpEntityEnclosingRequest r = new BasicHttpEntityEnclosingRequest("POST", s);
                  NStringEntity entity = null;
                  try {
                      entity = new NStringEntity(testjob.getExpected(), "US-ASCII");
                      entity.setChunked(true);
                  } catch (UnsupportedEncodingException ignore) {
                  }
                  r.setEntity(entity);
                  return r;
              }
  
          };
          executeStandardTest(new RequestHandler(), requestExecutionHandler);
      }
input: #vulnerable code 
                                  public void testSimpleHttpPostsChunked() throws Exception {
          HttpRequestExecutionHandler requestExecutionHandler = new TestRequestExecutionHandler() {
  
              @Override
              protected HttpRequest generateRequest(TestJob testjob) {
                  String s = testjob.getPattern() + "x" + testjob.getCount();
                  HttpEntityEnclosingRequest r = new BasicHttpEntityEnclosingRequest("POST", s);
                  NStringEntity entity = null;
                  try {
                      entity = new NStringEntity(testjob.getExpected(), "US-ASCII");
                      entity.setChunked(true);
                  } catch (UnsupportedEncodingException ignore) {
                  }
                  r.setEntity(entity);
                  return r;
              }
  
          };
          executeStandardTest(new TestRequestHandler(), requestExecutionHandler);
      } 
                              #location 19 
                              #vulnerability type THREAD_SAFETY_VIOLATION