Bug 125144 Clicking Show Project in Package Explorer results in exception
Clicking Show Project in Code model results in exception in DOS box === Steps to Reproduce: Create a Java project Open the Package Explorer Click the View menu Show - Projects. (This actually is a radio group menu item. It is by default selected, so clicking it again should have no effect) === Observed behaviour: Dos box: Unhandled event loop exception Reason: java.lang.NullPointerException See .log file (will be attached) === Expected behaviour: No exception === Reproducibility: yes
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
return fRootMode;
	}
	
	 boolean showProjects() {
		return fRootMode == ViewActionGroup.SHOW_PROJECTS;
	}
	
	 boolean showWorkingSets() {
		return fRootMode == ViewActionGroup.SHOW_WORKING_SETS;
	}
	
	private void setSorter() {
		if (showWorkingSets()) {
			fViewer.setSorter(new WorkingSetAwareJavaElementSorter());
		} else {
			fViewer.setSorter(new JavaElementSorter());
		}
	}
	
	
	
	public void internalTestShowWorkingSets(IWorkingSet[] workingSets) {
		if (fWorkingSetModel == null)
			createWorkingSetModel();
		fWorkingSetModel.setActiveWorkingSets(workingSets);
		fWorkingSetModel.configured();
		rootModeChanged(ViewActionGroup.SHOW_WORKING_SETS);
	}
}