Bug 21586 Javadoc-Help: Illegal access error
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/util/JavadocHelpContext.java
public static void displayHelp(String contextId, Object[] selected) throws CoreException {
		IHelp help= WorkbenchHelp.getHelpSupport();
		if (help == null) {
			return; 
		}
		IContext context= help.getContext(contextId);
		if (selected != null && selected.length > 0) {
			context= new JavadocHelpContext(context, selected);
		}
		WorkbenchHelp.displayHelp(context);
	}
	
	
	private static class JavaUIHelpResource implements IHelpResource {
		private IJavaElement fElement;
		private String fUrl;
		public JavaUIHelpResource(IJavaElement element, String url) {
			fElement= element;
			fUrl= url;
		}
		public String getHref() {
			return fUrl;
		}