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/*
* Copyright (c) 2004, 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 4992178
* @summary REGRESSION: Allow unlimited number of edits in an UndoManager
* @run main bug4992178
*/
import javax.swing.undo.AbstractUndoableEdit;
import javax.swing.undo.CannotRedoException;
import javax.swing.undo.CannotUndoException;
import javax.swing.undo.UndoManager;
public class bug4992178 {
public static void main(String[] argv) throws Exception {
TestUndoManager manager = new TestUndoManager();
manager.setLimit(1);
AbstractUndoableEdit edit = new MyUndoableEdit();
manager.addEdit(edit);
manager.setLimit(-1);
manager.discardAllEdits();
if (manager.getVectorSize() != 0) {
throw new RuntimeException(
"UndoManager's vector size should be 0 after discarding all changes");
}
}
static class TestUndoManager extends UndoManager {
public int getVectorSize() {
return edits.size();
}
}
static class MyUndoableEdit extends AbstractUndoableEdit {
@Override
public void undo() throws CannotUndoException {}
@Override
public void redo() throws CannotRedoException {}
}
}
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