--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/CompressedOops/CompressedClassSpaceSize.java	Thu Sep 11 17:54:22 2014 -0700
@@ -0,0 +1,105 @@
+/*
+ * 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 8022865
+ * @summary Tests for the -XX:CompressedClassSpaceSize command line option
+ * @library /testlibrary
+ * @run main CompressedClassSpaceSize
+ */
+import com.oracle.java.testlibrary.*;
+
+public class CompressedClassSpaceSize {
+
+    public static void main(String[] args) throws Exception {
+        ProcessBuilder pb;
+        OutputAnalyzer output;
+        if (Platform.is64bit()) {
+            // Minimum size is 1MB
+            pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=0",
+                                                       "-version");
+            output = new OutputAnalyzer(pb.start());
+            output.shouldContain("CompressedClassSpaceSize of 0 is invalid")
+                  .shouldHaveExitValue(1);
+
+            // Invalid size of -1 should be handled correctly
+            pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=-1",
+                                                       "-version");
+            output = new OutputAnalyzer(pb.start());
+            output.shouldContain("Improperly specified VM option 'CompressedClassSpaceSize=-1'")
+                  .shouldHaveExitValue(1);
+
+
+            // Maximum size is 3GB
+            pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=4g",
+                                                       "-version");
+            output = new OutputAnalyzer(pb.start());
+            output.shouldContain("CompressedClassSpaceSize of 4294967296 is invalid")
+                  .shouldHaveExitValue(1);
+
+
+            // Make sure the minimum size is set correctly and printed
+            pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
+                                                       "-XX:CompressedClassSpaceSize=1m",
+                                                       "-XX:+PrintCompressedOopsMode",
+                                                       "-version");
+            output = new OutputAnalyzer(pb.start());
+            output.shouldContain("Compressed class space size: 1048576")
+                  .shouldHaveExitValue(0);
+
+
+            // Make sure the maximum size is set correctly and printed
+            pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
+                                                       "-XX:CompressedClassSpaceSize=3g",
+                                                       "-XX:+PrintCompressedOopsMode",
+                                                       "-version");
+            output = new OutputAnalyzer(pb.start());
+            output.shouldContain("Compressed class space size: 3221225472")
+                  .shouldHaveExitValue(0);
+
+
+            pb = ProcessTools.createJavaProcessBuilder("-XX:-UseCompressedOops",
+                                                       "-XX:CompressedClassSpaceSize=1m",
+                                                       "-version");
+            output = new OutputAnalyzer(pb.start());
+            output.shouldContain("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used")
+                  .shouldHaveExitValue(0);
+
+
+            pb = ProcessTools.createJavaProcessBuilder("-XX:-UseCompressedClassPointers",
+                                                       "-XX:CompressedClassSpaceSize=1m",
+                                                       "-version");
+            output = new OutputAnalyzer(pb.start());
+            output.shouldContain("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used")
+                  .shouldHaveExitValue(0);
+        } else {
+            // 32bit platforms doesn't have compressed oops
+            pb = ProcessTools.createJavaProcessBuilder("-XX:CompressedClassSpaceSize=1m",
+                                                       "-version");
+            output = new OutputAnalyzer(pb.start());
+            output.shouldContain("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used")
+                  .shouldHaveExitValue(0);
+        }
+    }
+}