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/hotspot/jtreg/runtime/modules/SealedInterfaceModuleTest.java
+++ b/test/hotspot/jtreg/runtime/modules/SealedInterfaceModuleTest.java
@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2020, 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.
+ */
+
+/*
+ * @test
+ * @bug 8225056 8246337
+ * @modules java.base/jdk.internal.misc
+ * @library /test/lib ..
+ * @compile sealedP1/SuperInterface.jcod
+ * @compile sealedP1/C1.java sealedP2/C2.java sealedP3/C3.java
+ * @build jdk.test.whitebox.WhiteBox
+ * @compile/module=java.base java/lang/ModuleHelper.java
+ * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI SealedInterfaceModuleTest
+ */
+
+public class SealedInterfaceModuleTest {
+
+    // Test sub-classing a sealed super interface in a named module. In this test,
+    // sealed interface sealedP1/SuperInterface permits sealedP1.C1, sealedP2.C2, and
+    // sealedP3.C3.  All three of those classes implement sealedP1/SuperInterface.
+
+    public static void main(String args[]) throws Throwable {
+        Object m1x, m2x;
+
+        // Get the class loader for SealedInterfaceModuleTest and assume it's also used
+        // to load the other classes.
+        ClassLoader this_cldr = AccessCheckRead.class.getClassLoader();
+
+        // Define a module for packages sealedP1 and sealedP2.
+        m1x = ModuleHelper.ModuleObject("module_one", this_cldr,
+                                        new String[] { "sealedP1", "sealedP2" });
+        ModuleHelper.DefineModule(m1x, false, "9.0", "m1x/here",
+                                  new String[] { "sealedP1", "sealedP2" });
+
+        // Define a module for package sealedP3 with the same class loader.
+        m2x = ModuleHelper.ModuleObject("module_two", this_cldr, new String[] { "sealedP3" });
+        ModuleHelper.DefineModule(m2x, false, "9.0", "m2x/there", new String[] { "sealedP3" });
+
+        // Make package sealedP1 in m1x visible to everyone because it contains
+        // the sealed super interface for C1, C2, and C3.
+        ModuleHelper.AddModuleExportsToAll(m1x, "sealedP1");
+        ModuleHelper.AddReadsModule(m2x, m1x);
+
+        // Test subtype in the same named package and named module as its super
+        // interface.  This should succeed.
+        // Class sealedP1.C1 implements interface sealedP1.SuperInterface.
+        Class p1_C1_class = Class.forName("sealedP1.C1");
+
+        // Test non-public class in same module but different package than its
+        // super interface. This should throw ICCE.
+        // Class sealedP2.C2 implements interface class sealedP1.SuperInterface.
+        try {
+            Class p2_C2_class = Class.forName("sealedP2.C2");
+            throw new RuntimeException("Expected IncompatibleClassChangeError exception not thrown");
+        } catch (IncompatibleClassChangeError e) {
+            if (!e.getMessage().equals("Failed same package check: non-public subclass sealedP2.C2 " +
+                                       "is in package 'sealedP2' with classloader 'app', and sealed class " +
+                                       "sealedP1.SuperInterface is in package 'sealedP1' with classloader 'app'")) {
+                throw new RuntimeException("Wrong IncompatibleClassChangeError exception thrown: " + e.getMessage());
+            }
+        }
+
+        // Test subtype in a different module than its super type.  This should
+        // fail even though they have the same class loader.
+        // Class sealedP3.C3 implements interface sealedP1.SuperInterface.
+        try {
+            Class p3_C3_class = Class.forName("sealedP3.C3");
+            throw new RuntimeException("Expected IncompatibleClassChangeError exception not thrown");
+        } catch (IncompatibleClassChangeError e) {
+            if (!e.getMessage().equals("Failed same module check: subclass sealedP3.C3 is in module 'module_two' " +
+                                       "with loader 'app', and sealed class sealedP1.SuperInterface is in module " +
+                                       "'module_one' with loader 'app'")) {
+                throw new RuntimeException("Wrong IncompatibleClassChangeError exception thrown: " + e.getMessage());
+            }
+        }
+
+    }
+}