Bug 21586 Javadoc-Help: Illegal access error
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/util/JavadocHelpContext.java
File file= new File(url.getFile());
			return !file.exists();
		}
		return false;
	}
	private String retrieveText(IJavaElement elem) throws JavaModelException {
		if (elem instanceof IMember) {
			try {
				SingleCharReader reader= JavaDocAccess.getJavaDoc((IMember) elem, true);
				if (reader != null) {
					HTML2TextReader htmlReader= new HTML2TextReader(reader, null);
					String str= htmlReader.getString();
					BreakIterator breakIterator= BreakIterator.getSentenceInstance();
					breakIterator.setText(str);
					return str.substring(0, breakIterator.next());
				}
			} catch (IOException e) {
				JavaPlugin.log(e); 
			}
		}
		return ""; 
	}
	public IHelpResource[] getRelatedTopics() {
		return fHelpResources;
	}
	public String getText() {
		return fText;
	}
}