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 new StructuredSelection(elements);
	}
	private Object convertElement(Object original) {
		if (original instanceof IJavaElement) {
			return original;
		
		} else if (original instanceof IResource) {
			IJavaElement je= JavaCore.create((IResource)original);
			if (je != null && je.exists()) 
				return je;
		
		} else if (original instanceof IAdaptable) {
			IAdaptable adaptable= (IAdaptable)original;
			IJavaElement je= (IJavaElement) adaptable.getAdapter(IJavaElement.class);
			if (je != null && je.exists())
				return je;
			
			IResource r= (IResource) adaptable.getAdapter(IResource.class);
			if (r != null) {
				je= JavaCore.create(r);
				if (je != null && je.exists()) 
					return je;
				else
					return r;
			}
		}
		return original;
	}