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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
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*
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* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
/*
* @ test
* @ key headful
* @ bug 8015926
* @ summary Tests that there are no NPE during painting
* @ author Sergey Malenkov
*/
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
import static javax.swing.WindowConstants.DISPOSE_ON_CLOSE;
public class Test8015926 implements TreeModelListener, Runnable, Thread .UncaughtExceptionHandler {
public static void main(String[] args) throws Exception {
UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel" );
SwingUtilities.invokeAndWait(new Test8015926());
Thread .sleep(1000 L);
}
private JTree tree;
@Override
public void treeStructureChanged(TreeModelEvent event) {
}
@Override
public void treeNodesRemoved(TreeModelEvent event) {
}
@Override
public void treeNodesInserted(TreeModelEvent event) {
this .tree.expandPath(event.getTreePath());
}
@Override
public void treeNodesChanged(TreeModelEvent event) {
}
@Override
public void run() {
Thread .currentThread().setUncaughtExceptionHandler(this );
DefaultMutableTreeNode root = new DefaultMutableTreeNode();
DefaultMutableTreeNode child = new DefaultMutableTreeNode("Child" );
DefaultTreeModel model = new DefaultTreeModel(root);
this .tree = new JTree();
this .tree.setModel(model);
JFrame frame = new JFrame(getClass().getSimpleName());
frame.add(this .tree);
model.addTreeModelListener(this ); // frame is not visible yet
model.insertNodeInto(child, root, root.getChildCount());
model.removeNodeFromParent(child);
frame.setSize(640 , 480 );
frame.setLocationRelativeTo(null );
frame.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
frame.setVisible(true );
}
@Override
public void uncaughtException(Thread thread , Throwable exception) {
exception.printStackTrace();
throw new RuntimeException(exception);
}
}
Messung V0.5 in Prozent C=92 H=95 G=93
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