gistfile1.java

public class FocusRingBugFrame extends javax.swing.JFrame {
  private final javax.swing.JTextField textField;

  public FocusRingBugFrame() {
    textField = new javax.swing.JTextField();
    textField.putClientProperty("JTextField.variant", "search");
    getContentPane().add(textField, java.awt.BorderLayout.NORTH);
    pack();
  }

  public static void main(String args[]) {
    java.awt.EventQueue.invokeLater(new Runnable() {
      @Override
      public void run() {
        new FocusRingBugFrame().setVisible(true);
      }
    });
  }
}