--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/runtime/CompressedOops/CompressedClassPointers.java	Fri Oct 25 15:19:29 2013 -0400
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2013, 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 8024927
+ * @summary Testing address of compressed class pointer space as best as possible.
+ * @library /testlibrary
+ */
+
+import com.oracle.java.testlibrary.*;
+
+public class CompressedClassPointers {
+
+    public static void smallHeapTest() throws Exception {
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedBaseAddress=8g",
+            "-Xmx128m",
+            "-XX:+PrintCompressedOopsMode",
+            "-XX:+VerifyBeforeGC", "-version");
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldContain("Narrow klass base: 0x0000000000000000");
+        output.shouldHaveExitValue(0);
+    }
+
+    public static void smallHeapTestWith3G() throws Exception {
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:CompressedClassSpaceSize=3g",
+            "-Xmx128m",
+            "-XX:+PrintCompressedOopsMode",
+            "-XX:+VerifyBeforeGC", "-version");
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldContain("Narrow klass base: 0x0000000000000000, Narrow klass shift: 3");
+        output.shouldHaveExitValue(0);
+    }
+
+    public static void largeHeapTest() throws Exception {
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-Xmx30g",
+            "-XX:+PrintCompressedOopsMode",
+            "-XX:+VerifyBeforeGC", "-version");
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldNotContain("Narrow klass base: 0x0000000000000000");
+        output.shouldContain("Narrow klass shift: 0");
+        output.shouldHaveExitValue(0);
+    }
+
+    public static void largePagesTest() throws Exception {
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-Xmx128m",
+            "-XX:+UseLargePages",
+            "-XX:+PrintCompressedOopsMode",
+            "-XX:+VerifyBeforeGC", "-version");
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldContain("Narrow klass base:");
+        output.shouldHaveExitValue(0);
+    }
+
+    public static void sharingTest() throws Exception {
+        // Test small heaps
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=./sample.jsa",
+            "-Xmx128m",
+            "-XX:SharedBaseAddress=8g",
+            "-XX:+PrintCompressedOopsMode",
+            "-XX:+VerifyBeforeGC",
+            "-Xshare:dump");
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        try {
+          output.shouldContain("Loading classes to share");
+          output.shouldHaveExitValue(0);
+
+          pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=./sample.jsa",
+            "-Xmx128m",
+            "-XX:SharedBaseAddress=8g",
+            "-XX:+PrintCompressedOopsMode",
+            "-Xshare:on",
+            "-version");
+          output = new OutputAnalyzer(pb.start());
+          output.shouldContain("sharing");
+          output.shouldHaveExitValue(0);
+
+        } catch (RuntimeException e) {
+          output.shouldContain("Unable to use shared archive");
+          output.shouldHaveExitValue(1);
+        }
+    }
+
+  public static void main(String[] args) throws Exception {
+      if (!Platform.is64bit()) {
+          // Can't test this on 32 bit, just pass
+          System.out.println("Skipping test on 32bit");
+          return;
+      }
+      // Solaris 10 can't mmap compressed oops space without a base
+      if (Platform.isSolaris()) {
+           String name = System.getProperty("os.version");
+           if (name.equals("5.10")) {
+               System.out.println("Skipping test on Solaris 10");
+               return;
+           }
+      }
+      smallHeapTest();
+      smallHeapTestWith3G();
+      largeHeapTest();
+      largePagesTest();
+      sharingTest();
+  }
+}