Bug 273012 [Forms] NPE in FormPage.setActive(...)
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/editor/FormPage.java
* Returns the parent editor.
	 * 
	 * @return parent editor instance
	 */
	public FormEditor getEditor() {
		return editor;
	}
	/**
	 * Returns the managed form owned by this page.
	 * 
	 * @return the managed form
	 */
	public IManagedForm getManagedForm() {
		return mform;
	}
	/**
	 * Implements the required method by refreshing the form when set active.
	 * Subclasses must call super when overriding this method.
	 */
	public void setActive(boolean active) {
		if (active) {
			
			
			mform.refresh();
		}
	}
	/**
	 * Tests if the page is active by asking the parent editor if this page is
	 * the currently active page.
	 *