解组到java对象时发生线程死锁

Question

您好我正在使用HttpURLConnection发送服务器请求，并且XML输入流响应在多线程环境中由javax.xml.bind.Unmarshaller转换为java对象。它工作正常。但在某些时候，（即）在解组输入流时，线程被阻止了。那时我没有任何例外。

调用convertStreamToObject方法后，线程被阻塞。

请任何人帮我解决问题。代码在

之下

    try {
        url = new URL(requestURL);
        connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.setUseCaches(false);
        connection.setDoInput(true);
        connection.setDoOutput(true);
        connection.setConnectTimeout(1500);
        connection.setReadTimeout(1500);
        try {
            inputStream = connection.getInputStream();
        } catch (IOException e) {
            OPERATION_LOGS.error("IOException in sendRequest()",e);
        }if(inputStream != null){

                T response = convertStreamToObject(inputStream, responseObjType);
        }
    } catch(Exception e ) {
        OPERATION_LOGS.error("Exception in sendRequest()",e);
    }   


    public <K> K convertStreamToObject(InputStream inputStream, Class<K> type) {
        try {

            return  (K) XMLUtility.parseXML(inputStream, type);

        } catch (Exception e) {
            OPERATION_LOGS.error(EXCEPTION , e);
        }
        return null;
    }


    public static <T> T parseXML(InputStream inputStream, Class<T> type) {


        T beanObject = null;
        Unmarshaller unmarshObj = null;

        try {
            JAXBContext context = JAXBContext.newInstance(type);

            if (context != null) {
                unmarshObj = context.createUnmarshaller();
            }

            if (unmarshObj != null) {
                // Converting the xml into corresponding bean
                beanObject = (T) unmarshObj.unmarshal(inputStream);
            }
            OPERATION_LOGS.debug("Response XML:" + encodeXML(beanObject, type));

        } catch (JAXBException e) {
            OPERATION_LOGS.error(e.getMessage(),e);
        }
        return beanObject;
    }