Programmatic updation of work items

Can someone point me to an example for updating work items in RTC?

I saw the work item creation here: https://jazz.net/wiki/bin/view/Main/ProgrammaticWorkItemCreation

but a similar plain Java client example would be great. Thanks in advance.

		IWorkItem workItem = workItemClient.findWorkItemById(id, IWorkItem.SMALL_PROFILE, null);

		IWorkItemWorkingCopyManager wcm = workItemClient.getWorkItemWorkingCopyManager(); 		

		wcm.connect(workItem, IWorkItem.FULL_PROFILE, null);

		

		try {

			WorkItemWorkingCopy wc = wcm.getWorkingCopy(workItem);

			

			wc.getWorkItem().setHTMLSummary(XMLString.createFromPlainText(summary));

			IDetailedStatus s = wc.save(null);

			if (!s.isOK()) {

				throw new TeamRepositoryException("Error saving work item",

						s.getException());

			}

		} finally {

			wcm.disconnect(workItem);

		}



		System.out.println("Modified work item: " + workItem.getId() + ".");