hotspot/test/runtime/Unsafe/RangeCheck.java
changeset 25336 d35d298197f9
child 25368 506eef1dc714
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/Unsafe/RangeCheck.java	Tue Jun 24 07:10:06 2014 -0700
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2014, 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 8001071
+ * @summary Add simple range check into VM implemenation of Unsafe access methods
+ * @library /testlibrary
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+
+public class RangeCheck {
+
+    public static void main(String args[]) throws Exception {
+        if (!Platform.isDebugBuild()) {
+            System.out.println("Testing assert which requires a debug build. Passing silently.");
+            return;
+        }
+
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+                true,
+                "-Xmx32m",
+                "-XX:-TransmitErrorReport",
+                DummyClassWithMainRangeCheck.class.getName());
+
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldMatch("assert\\(byte_offset < p_size\\) failed: Unsafe access: offset \\d+ > object's size \\d+");
+    }
+
+    public static class DummyClassWithMainRangeCheck {
+        public static void main(String args[]) throws Exception {
+            Unsafe unsafe = Utils.getUnsafe();
+            unsafe.getObject(new DummyClassWithMainRangeCheck(), Short.MAX_VALUE);
+        }
+    }
+}