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/lang/ClassLoader/ExtDirs.java
+++ b/test/jdk/java/lang/ClassLoader/ExtDirs.java
@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2014, 2018, 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 8060206 8067366
+ * @library /test/lib
+ * @summary Extension mechanism is removed
+ */
+
+import jdk.test.lib.process.ProcessTools;
+
+import java.lang.Integer;
+import java.util.stream.Stream;
+
+public class ExtDirs {
+    private static String TEST_CLASSES = System.getProperty("test.classes", ".");
+
+    private static String[] VALUES = new String[] {
+            null,
+            "",
+            "\"\""
+    };
+
+    public static void main(String... args) throws Exception {
+        String value = System.getProperty("java.ext.dirs");
+        System.out.format("java.ext.dirs = '%s'%n", value);
+        if (args.length > 0) {
+            int index = Integer.valueOf(args[0]);
+            String expectedValue = VALUES[index];
+            if (!(expectedValue == value ||
+                    (value != null && value.isEmpty()) ||
+                    (expectedValue != null & expectedValue.equals(value)))) {
+                throw new RuntimeException("java.ext.dirs (" +
+                        value + ") != " + expectedValue);
+            }
+            // launched by subprocess.
+            return;
+        }
+
+        if (value != null) {
+            throw new RuntimeException("java.ext.dirs not removed: " + value);
+        }
+
+        fatalError(0, "-Djava.ext.dirs=foo");
+        start(0);
+        start(1, "-Djava.ext.dirs=");
+        start(2, "-Djava.ext.dirs=\"\"");
+    }
+
+    static String[] launchOptions(int testParam, String... args) {
+        return Stream.concat(Stream.of(args),
+                             Stream.of("-cp", TEST_CLASSES, "ExtDirs",
+                                       String.valueOf(testParam)))
+                     .toArray(String[]::new);
+    }
+
+    static void start(int testParam, String... args) throws Exception {
+        ProcessTools.executeTestJava(launchOptions(testParam, args))
+                    .shouldHaveExitValue(0);
+    }
+
+    static void fatalError(int testParam, String... args) throws Exception {
+        ProcessTools.executeTestJava(launchOptions(testParam, args))
+                    .stderrShouldContain("Could not create the Java Virtual Machine");
+    }
+}