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   6  * under the terms of the GNU General Public License version 2 only, as
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  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
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  23 
  24 /* @test
  25    @bug 6919629
  26    @summary Tests that components with Nimbus.Overrides are GC'ed properly
  27    @author Peter Zhelezniakov
  28    @run main Test6919629
  29 */
  30 
  31 import java.awt.Color;
  32 import java.lang.ref.WeakReference;
  33 import javax.swing.*;
  34 import javax.swing.plaf.nimbus.NimbusLookAndFeel;
  35 
  36 public class Test6919629
  37 {
  38     JFrame f;
  39     WeakReference<JLabel> ref;
  40 
  41     public static void main(String[] args) throws Exception {
  42         UIManager.setLookAndFeel(new NimbusLookAndFeel());
  43         Test6919629 t = new Test6919629();
  44         t.test();
  45         System.gc();
  46         t.check();
  47     }
  48 
  49     void test() throws Exception {
  50         SwingUtilities.invokeAndWait(new Runnable() {
  51             public void run() {
  52                 UIDefaults d = new UIDefaults();
  53                 d.put("Label.textForeground", Color.MAGENTA);
  54 
  55                 JLabel l = new JLabel();
  56                 ref = new WeakReference<JLabel>(l);
  57                 l.putClientProperty("Nimbus.Overrides", d);
  58 
  59                 f = new JFrame();
  60                 f.getContentPane().add(l);
  61                 f.pack();
  62                 f.setVisible(true);
  63             }
  64         });
  65         Thread.sleep(2000);
  66 
  67         SwingUtilities.invokeAndWait(new Runnable() {
  68             public void run() {
  69                 f.getContentPane().removeAll();
  70                 f.setVisible(false);
  71                 f.dispose();
  72             }
  73         });
  74         Thread.sleep(2000);
  75     }
  76 
  77     void check() {
  78         if (ref.get() != null) {
  79             throw new RuntimeException("Failed: an unused component wasn't collected");
  80         }
  81     }
  82 }