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

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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/awt/TextArea/TextLimitTest.java
+++ b/test/jdk/java/awt/TextArea/TextLimitTest.java
@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2001, 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 4260109
+  @summary tests that the text limit is set to the maximum possible value
+  @key headful
+*/
+
+import java.awt.BorderLayout;
+import java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.TextArea;
+
+public class TextLimitTest {
+    static Frame frame;
+    static TextArea textarea;
+
+    public static void main(String[] args) throws Exception {
+        try {
+            EventQueue.invokeAndWait(() -> {
+                StringBuffer buffer = new StringBuffer();
+                frame = new Frame("Text Limit Test");
+                textarea = new TextArea(3, 10);
+                frame.setLayout(new BorderLayout());
+                frame.add(textarea);
+                frame.setSize(200, 200);
+                frame.pack();
+                frame.setVisible(true);
+
+                /*
+                 * The magic number 0xF700 was choosen because of the two reasons:
+                 *  - it shouldn't be greater since on win95 (even in native win32 apps)
+                 *    adding more than 0xF800 symbols to a textarea doesn't always work,
+                 *  - it shouldn't be less since in this case we won't run in the stack
+                 *    overflow on Win95 even if we use W2A allocating memory on the stack.
+                 */
+                for (int i = 0; i < 0xF700; i += 0x10) {
+                    buffer.append("0123456789abcdef");
+                }
+
+                textarea.setText(buffer.toString());
+                System.out.println("Text length before append: " +
+                        Integer.toString(textarea.getText().length(), 16));
+
+                textarea.append("0123456789abcdef");
+
+                int len = textarea.getText().length();
+                System.out.println("Text length after append: " +
+                        Integer.toString(len, 16));
+                if (len != 0xF710) {
+                    throw new RuntimeException("Test failed: textarea has " +
+                            "wrong text limit!");
+                }
+            });
+            System.out.println("Test pass");
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (frame != null) {
+                    frame.dispose();
+                }
+            });
+        }
+    }
+}