#fixed code
                                public String makePostRequestWithFormParameters(String url,
                                                    Map<String, String> headers,
                                                    Map<String, String> formParameters) {

        StringBuffer sb = new StringBuffer();
        BufferedReader br = null;
        try {

            HttpPost postRequest = new HttpPost(url);

            if (headers != null) {
                // add all headers
                for (Entry<String, String> header : headers.entrySet()) {
                    postRequest.addHeader(header.getKey(), header.getValue());
                }
            }

            // add form parameters:
            List<BasicNameValuePair> formparams = new ArrayList<BasicNameValuePair>();
            if (formParameters != null) {

                for (Entry<String, String> parameter : formParameters
                        .entrySet()) {

                    formparams.add(new BasicNameValuePair(parameter.getKey(),
                            parameter.getValue()));
                }

            }

            // encode form parameters and add
            UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams);
            postRequest.setEntity(entity);

            HttpResponse response;

            response = httpClient.execute(postRequest);

            br = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));

            String output;
            while ((output = br.readLine()) != null) {
                sb.append(output);
            }

            postRequest.releaseConnection();

        } catch (Exception e) {
            throw new RuntimeException(e);
        } finally {
            if (br != null) {
                try {
                    br.close();
                } catch (IOException e) {
                    LOG.error("Failed to close resource", e);
                }
            }
        }

        return sb.toString();

    }
#vulnerable code 
                                public String makePostRequestWithFormParameters(String url,
                                                    Map<String, String> headers,
                                                    Map<String, String> formParameters) {

        StringBuffer sb = new StringBuffer();

        try {

            HttpPost postRequest = new HttpPost(url);

            if (headers != null) {
                // add all headers
                for (Entry<String, String> header : headers.entrySet()) {
                    postRequest.addHeader(header.getKey(), header.getValue());
                }
            }

            // add form parameters:
            List<BasicNameValuePair> formparams = new ArrayList<BasicNameValuePair>();
            if (formParameters != null) {

                for (Entry<String, String> parameter : formParameters
                        .entrySet()) {

                    formparams.add(new BasicNameValuePair(parameter.getKey(),
                            parameter.getValue()));
                }

            }

            // encode form parameters and add
            UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams);
            postRequest.setEntity(entity);

            HttpResponse response;

            response = httpClient.execute(postRequest);

            BufferedReader br = new BufferedReader(new InputStreamReader(
                    response.getEntity().getContent(), "UTF-8"));

            String output;
            while ((output = br.readLine()) != null) {
                sb.append(output);
            }

            postRequest.releaseConnection();

        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        return sb.toString();

    } 
                            #location 49 
                            #vulnerability type RESOURCE_LEAK