Bug 273012 [Forms] NPE in FormPage.setActive(...)
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/editor/FormPage.java
* <code>initialize</code> method if this constructor is used.
	 * 
	 * @param id
	 *            a unique page identifier
	 * @param title
	 *            a user-friendly page title
	 */
	public FormPage(String id, String title) {
		this.id = id;
		setPartName(title);
	}
	/**
	 * Initializes the form page.
	 * 
	 * @see IEditorPart#init
	 */
	public void init(IEditorSite site, IEditorInput input) {
		setSite(site);
		setInput(input);
	}
	/**
	 * Primes the form page with the parent editor instance.
	 * 
	 * @param editor
	 *            the parent editor
	 */
	public void initialize(FormEditor editor) {
		this.editor = editor;
	}
	/**