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.

test/jdk/java/lang/ThreadLocal/InitialValue.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2005, 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     5025230
+ * @summary Tests to see that a set nested in initialValue works OK
+ * @author  Pete Soper
+ */
+public class InitialValue implements Runnable {
+
+    static ThreadLocal<String> other;
+    static boolean passed;
+
+    public class MyLocal extends ThreadLocal<String> {
+        String val;
+        protected String initialValue() {
+            other = new ThreadLocal<String>();
+            // This should reuse the map that the containing get() created
+            // or visa versa (i.e. instead of a second map being created).
+            other.set("Other");
+            return "Initial";
+        }
+    }
+
+    public void run() {
+        MyLocal l = new MyLocal();
+        // This should pick up the initial value
+        String s1 = l.get();
+        // And this should pick up the other local in this thread's locals map
+        String s2 = other.get();
+        if ((s2 != null) && s2.equals("Other")) {
+            // JMM guarantees this will be visible to
+            // another thread joining with this thread's
+            // termination: no need for this to be volatile.
+            passed = true;
+        }
+    }
+
+    public static void main(String[] args) {
+        // Starting with Mustang the main thread already has an initialized
+        // ThreadLocal map at this point, so test with a second thread.
+        Thread t = new Thread(new InitialValue());
+        t.start();
+        try {
+            t.join();
+        } catch (InterruptedException e) {
+            throw new RuntimeException("Test Interrupted: failed");
+        }
+        if (!passed) {
+            throw new RuntimeException("Test Failed");
+        }
+    }
+}