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/ParallelLoad/ParallelSuper/ParallelSuperTest.java
+++ b/test/hotspot/jtreg/runtime/ParallelLoad/ParallelSuper/ParallelSuperTest.java
@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2021, 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.
+ */
+
+/*
+ * @test MyLoaderTest
+ * @bug 8262046
+ * @summary Call handle_parallel_super_load, loading parallel threads that throw CCE
+ * @modules java.base/jdk.internal.misc
+ * @library /testlibrary/asm
+ * @library /test/lib
+ * @compile -XDignore.symbol.file AsmClasses.java
+ * @compile test-classes/ClassInLoader.java test-classes/A.java test-classes/B.java ../share/ThreadPrint.java
+ * @run main/othervm ParallelSuperTest
+ * @run main/othervm ParallelSuperTest -parallel -parallelCapable
+ */
+
+public class ParallelSuperTest {
+    public static void main(java.lang.String[] args) throws Exception {
+        boolean parallel = false;
+        boolean parallelCapable = false;
+        boolean success = true;
+        for (int i = 0; i < args.length; i++) {
+            try {
+                // Don't print debug info
+                if (args[i].equals("-parallel")) {
+                    parallel = true;
+                } else if (args[i].equals("-parallelCapable")) {
+                    parallelCapable = true;
+                } else {
+                    System.out.println("Unrecognized " + args[i]);
+                }
+            } catch (NumberFormatException e) {
+                System.err.println("Invalid parameter: " + args[i - 1] + " " + args[i]);
+            }
+        }
+        // The -parallel -parallelCapable case will deadlock on locks for A and B if
+        // the jvm doesn't eagerly try to load A's superclass from the second thread.
+        // ie. needs to call SystemDictionary::handle_parallel_super_load
+        if (parallelCapable) {
+            MyLoader ldr = new MyLoader(parallel);
+            ldr.startLoading();
+            success = ldr.report_success();
+        } else {
+            MyNonParallelLoader ldr = new MyNonParallelLoader(parallel);
+            ldr.startLoading();
+            success = ldr.report_success();
+        }
+        if (success) {
+            System.out.println("PASSED");
+        } else {
+            throw new RuntimeException("FAILED");
+        }
+    }
+}