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/Headless/HeadlessMalfunctionTest.java
+++ b/test/jdk/java/awt/Headless/HeadlessMalfunctionTest.java
@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2024, 2025, 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 jdk.test.lib.JDKToolFinder;
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+/*
+ * @test
+ * @bug 8336382
+ * @summary Test that in absence of isHeadless method, the JDK throws a meaningful error message.
+ * @library /test/lib
+ * @requires os.family == "linux"
+ * @build HeadlessMalfunctionAgent
+ * @run driver  jdk.test.lib.helpers.ClassFileInstaller
+ *              HeadlessMalfunctionAgent
+ *              HeadlessMalfunctionAgent$1
+ * @run driver/timeout=240 HeadlessMalfunctionTest
+ */
+public class HeadlessMalfunctionTest {
+
+    public static void main(String[] args) throws Exception {
+        // Package agent
+        Files.writeString(Path.of("MANIFEST.MF"), "Premain-Class: HeadlessMalfunctionAgent\n");
+        final ProcessBuilder pbJar = new ProcessBuilder()
+                .command(JDKToolFinder.getJDKTool("jar"), "cmf", "MANIFEST.MF", "agent.jar",
+                        "HeadlessMalfunctionAgent.class",
+                        "HeadlessMalfunctionAgent$1.class");
+        ProcessTools.executeProcess(pbJar).shouldHaveExitValue(0);
+
+        // Run test
+        final ProcessBuilder pbJava = ProcessTools.createTestJavaProcessBuilder(
+                "-javaagent:agent.jar",
+                "HeadlessMalfunctionTest$Runner"
+        );
+        final OutputAnalyzer output = ProcessTools.executeProcess(pbJava);
+        // Unpatched JDK logs: "FATAL ERROR in native method: Could not allocate library name"
+        // Patched should mention that isHeadless is missing, log message differs between OSes;
+        // e.g. LWCToolkit toolkit path on MacOS and Win32GraphicsEnvironment code path on Windows
+        // logs "java.lang.NoSuchMethodError: 'boolean java.awt.GraphicsEnvironment.isHeadless()'",
+        // whereas Linux logs "FATAL ERROR in native method: GetStaticMethodID isHeadless failed"
+        output.shouldContain("FATAL ERROR in native method: GetStaticMethodID isHeadless failed");
+        output.shouldNotHaveExitValue(0);
+    }
+
+    public static class Runner {
+        public static void main(String[] args) {
+            System.out.println(java.awt.GraphicsEnvironment
+                    .getLocalGraphicsEnvironment()
+                    .getMaximumWindowBounds());
+        }
+    }
+}