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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/java/awt/TextArea/TextAreaAppendScrollTest.java Normal file
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/*
* Copyright (c) 2004, 2024, 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.
*/
import java.awt.Button;
import java.awt.Frame;
import java.awt.TextArea;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
/*
* @test
* @bug 5003402
* @summary TextArea must scroll automatically when calling append and select, even when not in focus
* @library /java/awt/regtesthelpers
* @build PassFailJFrame
* @run main/manual TextAreaAppendScrollTest
*/
public class TextAreaAppendScrollTest extends Frame implements ActionListener {
int phase;
int pos1, pos2;
TextArea area;
private static final String INSTRUCTIONS = """
Press "Click Here" button.
The word "First" should be visible in the TextArea.
Press "Click Here" button again.
The word "Next" should be visible in the TextArea.
Press "Click Here" button again.
The word "Last" should be visible in the TextArea.
If you have seen all three words, press Pass, else press Fail.
""";
public static void main(String[] args) throws Exception {
PassFailJFrame.builder()
.title("TextAreaAppendScrollTest")
.instructions(INSTRUCTIONS)
.rows((int) INSTRUCTIONS.lines().count() + 2)
.columns(40)
.testUI(TextAreaAppendScrollTest::new)
.build()
.awaitAndCheck();
}
public TextAreaAppendScrollTest() {
area = new TextArea();
add("Center", area);
Button bt1 = new Button("Click Here");
add("South", bt1);
String filler = "";
for (int i = 0; i < 100; i++) {
filler = filler + i + "\n";
}
String text = filler;
pos1 = text.length();
text = text + "First\n" + filler;
pos2 = text.length();
text = text + "Next\n" + filler;
area.setText(text);
phase = 0;
bt1.addActionListener(this);
pack();
}
public void actionPerformed(ActionEvent ev) {
if (phase == 0) {
area.select(pos1, pos1);
phase = 1;
} else if (phase == 1) {
area.select(pos2, pos2);
phase = 2;
} else {
area.append("Last\n");
phase = 0;
}
}
}