Bug 41584 Search references not hitting build path for working set [search]
This happens in 3.0M2 If I'm searching for references of a method, I usually right click, Search->References->Workspace. However, with large workspaces, this can take pretty long, so I've gotten in the habit of searching for references within a working set. I usually define a workingset for each project and all its contents. The problem is, when I search for references of a method in the workingset, it does not find references to that symbol from the thirdparty jars I have attached to the project's build path (verified the jar is selected as part of the working set). However, if I search the workspace, it does find the references in that thirdparty jar. This is usually for a method defined in the thirdparty jar that I use, and want to see how it is used by the thirdparty.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/search/JavaSearchScopeFactory.java
private JavaSearchScopeFactory() {
	}
	public static JavaSearchScopeFactory getInstance() {
		if (fgInstance == null)
			fgInstance= new JavaSearchScopeFactory();
		return fgInstance;
	}
	public IWorkingSet[] queryWorkingSets() throws JavaModelException {
		Shell shell= JavaPlugin.getActiveWorkbenchShell();
		if (shell == null)
			return null;
		IWorkingSetSelectionDialog dialog= PlatformUI.getWorkbench().getWorkingSetManager().createWorkingSetSelectionDialog(shell, true);
		if (dialog.open() == Window.OK) {
			IWorkingSet[] workingSets= dialog.getSelection();
			if (workingSets.length > 0)
				return workingSets;
		}
		return null;
	}
	public IJavaSearchScope createJavaSearchScope(IWorkingSet[] workingSets) {
		if (workingSets == null || workingSets.length < 1)
			return EMPTY_SCOPE;
		Set javaElements= new HashSet(workingSets.length * 10);
		for (int i= 0; i < workingSets.length; i++)
			addJavaElements(javaElements, workingSets[i]);
		return createJavaSearchScope(javaElements);
	}
	
	public IJavaSearchScope createJavaSearchScope(IWorkingSet workingSet) {