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
fContentProvider.setIsFlatLayout(isFlatLayout());
		fLabelProvider.setIsFlatLayout(isFlatLayout());
		
		fViewer.getControl().setRedraw(false);
		fViewer.refresh();
		fViewer.getControl().setRedraw(true);
	}
	
	/**
	 * This method should only be called inside this class
	 * and from test cases.
	 */
	public PackageExplorerContentProvider createContentProvider() {
		IPreferenceStore store= PreferenceConstants.getPreferenceStore();
		boolean showCUChildren= store.getBoolean(PreferenceConstants.SHOW_CU_CHILDREN);
		if (showProjects()) 
			return new PackageExplorerContentProvider(this, showCUChildren);
		else
			return new WorkingSetAwareContentProvider(this, showCUChildren, fWorkingSetModel);
	}
	
	private PackageExplorerLabelProvider createLabelProvider() {
		if (showProjects()) 
			return new PackageExplorerLabelProvider(AppearanceAwareLabelProvider.DEFAULT_TEXTFLAGS | JavaElementLabels.P_COMPRESSED,
				AppearanceAwareLabelProvider.DEFAULT_IMAGEFLAGS | JavaElementImageProvider.SMALL_ICONS,
				fContentProvider);
		else
			return new WorkingSetAwareLabelProvider(AppearanceAwareLabelProvider.DEFAULT_TEXTFLAGS | JavaElementLabels.P_COMPRESSED,
				AppearanceAwareLabelProvider.DEFAULT_IMAGEFLAGS | JavaElementImageProvider.SMALL_ICONS,
				fContentProvider);