public HtmlRendererContext open( URL url, String windowName, String windowFeatures, boolean replace) { TestFrame frame = new TestFrame("Cobra Test Tool"); frame.setSize(600, 400); frame.setExtendedState(TestFrame.NORMAL); frame.setVisible(true); HtmlRendererContext ctx = frame.getHtmlRendererContext(); ctx.setOpener(this); frame.navigate(url.toExternalForm()); return ctx; }