/* * Copyright (c) 2012, 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.
*/
publicvoid testNPEAtActionsPage() {
JTree tree = new JTree();
BasicTreeUI ui = new NullReturningTreeUI();
tree.setUI(ui);
BasicTreeUI.TreePageAction tpa = ui.new TreePageAction(0, "down");
tpa.actionPerformed(new ActionEvent(tree, 0, ""));
}
privatestaticfinalclass NullReturningTreeUI extends BasicTreeUI {
@Override public Rectangle getPathBounds(JTree tree, TreePath path) { // the method can return null and callers have to be ready for // that. Simulate the case by returning null for unknown reason. returnnull;
}
}
}
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