JComponent () { final JComponent component = myEditor.getComponent(); if (availableImplicits.isEmpty() && myHint == null) { return component; } final JPanel panel = new JPanel(new BorderLayout()); panel.add(component, BorderLayout.CENTER); String availableVariables = JavaBundle.message("generate.tostring.available.implicit.variables.label", StringUtil.join(availableImplicits, ", ")); JLabel label = new JLabel(XmlStringUtil.wrapInHtml( (!availableImplicits.isEmpty() ? availableVariables + "<br/>" : "") + (myHint != null ? myHint : ""))); panel.add(label, BorderLayout.SOUTH); return panel; }