Bug 36141 Misbehaving property page causes property dialog to fail to open
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
gd.widthHint = 150;
		gd.verticalSpan = 2;
		tree.setLayoutData(gd);
		
		Composite titleComposite = new Composite(composite, SWT.NONE);
		GridLayout layout = new GridLayout();
		layout.marginHeight = 0;
		layout.marginWidth = 0;
		layout.verticalSpacing = 0;
		layout.horizontalSpacing = 0;
		titleComposite.setLayout(layout);
		titleComposite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		createTitleArea(titleComposite);
		
		pageContainer = createPageContainer(composite);
		pageContainer.setLayoutData(new GridData(GridData.FILL_BOTH));
		pageContainer.setFont(parent.getFont());
		
		Label separator = new Label(composite, SWT.HORIZONTAL | SWT.SEPARATOR);
		gd = new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan = 2;
		separator.setLayoutData(gd);
		return composite;
	}
	/**
	 * Creates the inner page container.
	 */
	private Composite createPageContainer(Composite parent) {
		Composite result = new Composite(parent, SWT.NULL);
		result.setLayout(new PageLayout());