Example code to retrieve related workitems from a workitem? Java API

How about Ralph's blogs?
https://rsjazz.wordpress.com/2012/09/19/the-rtc-workitem-link-api-linking-workitems-to-other-elements/
https://rsjazz.wordpress.com/2012/09/20/the-rtc-workitem-server-link-api-linking-to-work-items-and-other-elements/

ILinkService linkService = (ILinkService) getService(ILinkService.class);
ILinkServiceLibrary linkLibrary = (ILinkServiceLibrary) linkService.getServiceLibrary(ILinkServiceLibrary.class);
IItemReference workItemRef = IReferenceFactory.INSTANCE.createReferenceToItem(sourceworkItem);
ILinkQueryPage linkPage = linkLibrary.findLinks(WorkItemLinkTypes.RELATED_WORK_ITEM, workItemRef);
ILinkCollection relatedWorkItems = linkPage.getAllLinksFromHereOn();