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/util/EnumSet/OneUniverse.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2006, 2007, 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     6276988
+ * @summary All enum constants in a class should share a single "universe".
+ * @modules java.base/java.util:open
+ */
+
+import java.lang.reflect.Field;
+import java.math.RoundingMode;
+import java.util.EnumSet;
+
+public class OneUniverse {
+
+    private static final Field universeField;
+
+    static {
+        try {
+            universeField = EnumSet.class.getDeclaredField("universe");
+        } catch (NoSuchFieldException e) {
+            throw new AssertionError(e);
+        }
+        universeField.setAccessible(true);
+    }
+
+    public static void main(String... args) {
+
+        EnumSet<RoundingMode> noneSet = EnumSet.noneOf(RoundingMode.class);
+        EnumSet<RoundingMode> allSet  = EnumSet.allOf(RoundingMode.class);
+
+        if (getUniverse(noneSet) != getUniverse(allSet)) {
+            throw new AssertionError(
+                    "Multiple universes detected.  Inform the bridge!");
+        }
+    }
+
+    private static <E extends Enum<E>> Enum<E>[] getUniverse(EnumSet<E> set) {
+        try {
+            return (Enum<E>[]) universeField.get(set);
+        } catch (IllegalAccessException e) {
+            throw new AssertionError(e);
+        }
+    }
+}