Bug 67814 Show In > Package Explorer doesn't ask for removal of last filter [package explorer]
200406180010; Not a dup of 66646. 'Show In > Package Explorer' doesn't ask for removal of a filter iff there's only a single filter set. Steps: - Disable all filters in Package Explorer, except for 'Referenced Libraries'. - Open editor for java.util.Vector - Navigate > Show In > Package Explorer => fails, doesn't ask for filter removal. Works iff at least one other filter (which would not filter the element) is active.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
elements[i]= jElement;
				}
				else if (o instanceof IAdaptable) {
					IResource r= (IResource)((IAdaptable)o).getAdapter(IResource.class);
					if (r != null) {
						IJavaElement jElement= JavaCore.create(r);
						if (jElement != null && jElement.exists()) 
							elements[i]= jElement;
						else
							elements[i]= r;
					}
				}
			}
		}
		
		return new StructuredSelection(elements);
	}
	
	private boolean containsResources(Object[] elements) {
		for (int i = 0; i < elements.length; i++) {
			Object o= elements[i];
			if (!(o instanceof IJavaElement)) {
				if (o instanceof IResource)
					return true;
				if ((o instanceof IAdaptable) && ((IAdaptable)o).getAdapter(IResource.class) != null)
					return true;
				}
		}
		return false;
	}