} catch (final Exception e) {
                    exceptionSet.add(e);
                } finally {
                    done.set(true);
                }
            }, Thread.currentThread().getName() + "-pdf");
            task.setDaemon(isDaemonThread);
            task.start();
            task.join(timeout);
            if (!done.get()) {
                for (int i = 0; i < 100 && !done.get(); i++) {

     *
     * @return the XPathAPI instance
     */
    protected XPathAPI getXPathAPI() {
        try {
            return xpathAPICache.get(Thread.currentThread().getName());
        } catch (final ExecutionException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to retrieval a cache.", e);
            }
            return new XPathAPI();

            final Enumeration<Header> headers = message.getAllHeaders();
            while (headers.hasMoreElements()) {
                final Header header = headers.nextElement();
                data.putValue(header.getName(), header.getValue());
            }
            putValue(data, "Content-ID", message.getContentID());
            putValue(data, "Content-Language", message.getContentLanguage());

                .singleton("mimeTypeHelper", MimeTypeHelperImpl.class)
                .<FileTransformer> singleton("fileTransformer", FileTransformer.class, transformer -> {
                    transformer.setName("fileTransformer");
                    transformer.setFeatureMap(featureMap);
                    transformer.setPropertyMap(propertyMap);
                    transformer.setChildUrlRuleMap(childUrlRuleMap);

     */
    protected String replaceCredentials(final Credentials credentials, final String value) {
        if (StringUtil.isNotBlank(value)) {
            return value.replace(USERNAME, credentials.getUserPrincipal().getName()).replace(PASSWORD, credentials.getPassword());
        }
        return StringUtil.EMPTY;
    }

    /**
     * Returns a string representation of this object.
     * @return A string representation.

            this.name = name;
        }

        @Override
        public void process(ResponseData responseData) {
            processCount++;
        }

        public String getName() {
            return name;
        }

        public int getProcessCount() {
            return processCount;
        }
    }

    /**
     * Test basic Rule implementation
     */

                    requestDataSet.add(RequestDataBuilder.newRequestData().get().url("storage://" + bucketName + "/" + objectName).build());
                }
                throw new ChildUrlsException(requestDataSet, this.getClass().getName() + "#getResponseData");
            }
            // check file size
            responseData.setContentLength(statObject.size());
            checkMaxContentLength(responseData);

                return func.apply(this).actionGet(connTimeout, TimeUnit.MILLISECONDS);
            } catch (final IndexNotFoundException | VersionConflictEngineException e) {
                logger.debug("{} occurs.", e.getClass().getName(), e);
                throw e;
            } catch (final Exception e) {
                if (retryCount > maxRetryCount) {
                    throw e;
                }