ioException.initCause(illegalArgument);
ServiceException serviceException = new ServiceException("hello service exception");
serviceException.setCode("helloCode");
serviceException.setLocator("helloLocator");
serviceException.getExceptionText().add("helloText");
serviceException.initCause(ioException);
handler.handleServiceException(serviceException, requestInfo);
InputStream input = new ByteArrayInputStream(response.getOutputStreamContent().getBytes());
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();