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/*
* Copyright (c) 2003, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* 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).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* @test
* @bug 4696499
* @summary new tree model asked about nodes of previous tree model
* @run main bug4696499
*/
import java.util.ArrayList;
import javax.swing.JTree;
import javax.swing.event.TreeModelListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;
public class bug4696499 {
public static void main(String[] args) throws Exception {
JTree tree = new JTree();
TreeModel model = new MyModel();
tree.setModel(model);
tree.setSelectionRow(1);
model = new MyModel();
tree.setModel(model);
}
}
class MyModel implements TreeModel {
private Object root = "Root";
private ArrayList listeners = new ArrayList();
private TreeNode ONE;
static int next = 1;
MyModel() {
ONE = new DefaultMutableTreeNode(next);
next *= 2;
}
public void addTreeModelListener(TreeModelListener l) {
listeners.add(l);
}
public void removeTreeModelListener(TreeModelListener l) {
listeners.remove(l);
}
public void valueForPathChanged(TreePath tp, Object newValue) {
}
public Object getRoot() {
return root;
}
public boolean isLeaf(Object o) {
return o == ONE;
}
public int getIndexOfChild(Object parent, Object child) {
if (parent != root || child != ONE) {
throw new RuntimeException("This method is called with the child " +
"of the previous tree model");
}
return 0;
}
public int getChildCount(Object o) {
if (o == root) {
return 1;
}
if (o == ONE) {
return 0;
}
throw new IllegalArgumentException(o.toString());
}
public Object getChild(Object o, int index) {
if (o != root || index != 0) {
throw new IllegalArgumentException(o + ", " + index);
}
return ONE;
}
}
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