#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);
    }
#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