Bug 43488 [typing] BadPositionCategoryException in LinkedPositionManager
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/link/contentassist/ContentAssistant2.java
* @return the auto activation characters
	 *
	 * @see IContentAssistProcessor#getContextInformationAutoActivationCharacters
	 */
	private char[] getContextInformationAutoActivationCharacters(ITextViewer textViewer, int offset) {
		IContentAssistProcessor p= getProcessor(textViewer, offset);
		return p != null ? p.getContextInformationAutoActivationCharacters() : null;
	}
	
	/*
	 * @see org.eclipse.jface.text.IWidgetTokenKeeper#requestWidgetToken(IWidgetTokenOwner)
	 * @since 2.0
	 */
	public boolean requestWidgetToken(IWidgetTokenOwner owner) {
		hidePossibleCompletions();
		return true;
	}
	/**
	 * @param i
	 */
	public void setCompletionPosition(int completionPosition) {
		fCompletionPosition= completionPosition;
	}
	
	public int getCompletionPosition() {
		return fCompletionPosition;
	}
	/**
	 * @param strings
	 */