Bug 95548 Editors page not sized properly on startup
build N20050517, open preferences dialog to editors page (under General). now close and open the dialog again and note that the dialog is too short.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
int y = minimumPageSize.y;
			Control[] children = composite.getChildren();
			for (int i = 0; i < children.length; i++) {
				Point size = children[i].computeSize(SWT.DEFAULT, SWT.DEFAULT, force);
				x = Math.max(x, size.x);
				y = Math.max(y, size.y);
			}
			if (wHint != SWT.DEFAULT)
				x = wHint;
			if (hHint != SWT.DEFAULT)
				y = hHint;
			return new Point(x, y);
		}
		public void layout(Composite composite, boolean force) {
			Rectangle rect = composite.getClientArea();
			Control[] children = composite.getChildren();
			for (int i = 0; i < children.length; i++) {
				children[i].setSize(rect.width, rect.height);
			}
		}
	}
	
	private static String lastPreferenceId = null;
	
	private static int lastTreeWidth = 150;
	/**
	 * Indentifier for the error image
	 */
	public static final String PREF_DLG_IMG_TITLE_ERROR = DLG_IMG_MESSAGE_ERROR; 
	/**