--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SharedArchiveFile/BasicJarBuilder.java	Fri Jul 31 10:33:02 2015 -0700
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @summary Simple jar builder
+ *   Input: jarName className1 className2 ...
+ *     do not specify extensions, just the names
+ *     E.g. prot_domain ProtDomainA ProtDomainB
+ *   Output: A jar containing compiled classes, placed in a test classes folder
+ */
+
+import jdk.test.lib.*;
+
+import java.io.File;
+import java.util.ArrayList;
+import sun.tools.jar.Main;
+
+public class BasicJarBuilder {
+    private static final String classDir = System.getProperty("test.classes");
+
+    public static void build(String jarName, String ...classNames)
+        throws Exception {
+
+        createSimpleJar(classDir, classDir + File.separator + jarName +
+            ".jar", classNames);
+    }
+
+    private static void createSimpleJar(String jarclassDir, String jarName,
+        String[] classNames) throws Exception {
+        ArrayList<String> args = new ArrayList<String>();
+        args.add("cf");
+        args.add(jarName);
+        addClassArgs(args, jarclassDir, classNames);
+        createJar(args);
+    }
+
+    private static void addClassArgs(ArrayList<String> args, String jarclassDir,
+        String[] classNames) {
+
+        for (String name : classNames) {
+            args.add("-C");
+            args.add(jarclassDir);
+            args.add(name + ".class");
+        }
+    }
+
+    private static void createJar(ArrayList<String> args) {
+        Main jarTool = new Main(System.out, System.err, "jar");
+        if (!jarTool.run(args.toArray(new String[1]))) {
+            throw new RuntimeException("jar operation failed");
+        }
+    }
+
+    // helpers
+    public static String getTestJar(String jar) {
+        File dir = new File(System.getProperty("test.classes", "."));
+        File jarFile = new File(dir, jar);
+        if (!jarFile.exists()) {
+            throw new RuntimeException("Cannot find " + jarFile.getPath());
+        }
+        if (!jarFile.isFile()) {
+            throw new RuntimeException("Not a regular file: " + jarFile.getPath());
+        }
+        return jarFile.getPath();
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SharedArchiveFile/SharedStrings.java	Fri Jul 31 10:33:02 2015 -0700
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2015, 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
+ * @summary Check to make sure that shared strings in the bootstrap CDS archive
+ *          are actually shared
+ * Feature support: G1GC only, compressed oops/kptrs, 64-bit os, not on windows
+ * @requires (sun.arch.data.model != "32") & (os.family != "windows")
+ * @requires (vm.opt.UseCompressedOops == null) | (vm.opt.UseCompressedOops == true)
+ * @requires (vm.gc=="G1" | vm.gc=="null")
+ * @library /testlibrary /../../test/lib
+ * @modules java.base/sun.misc
+ *          java.management
+ * @build SharedStringsWb SharedStrings BasicJarBuilder
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ * @run main SharedStrings
+ */
+
+import jdk.test.lib.*;
+
+public class SharedStrings {
+    public static void main(String[] args) throws Exception {
+        BasicJarBuilder.build("whitebox", "sun/hotspot/WhiteBox");
+
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=./SharedStrings.jsa",
+            "-XX:+PrintSharedSpaces",
+            // Needed for bootclasspath match, for CDS to work with WhiteBox API
+            "-Xbootclasspath/a:" + BasicJarBuilder.getTestJar("whitebox.jar"),
+            "-Xshare:dump");
+
+        new OutputAnalyzer(pb.start())
+            .shouldContain("Loading classes to share")
+            .shouldContain("Shared string table stats")
+            .shouldHaveExitValue(0);
+
+        pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=./SharedStrings.jsa",
+            // these are required modes for shared strings
+            "-XX:+UseCompressedOops", "-XX:+UseG1GC",
+            // needed for access to white box test API
+            "-Xbootclasspath/a:" + BasicJarBuilder.getTestJar("whitebox.jar"),
+            "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI",
+            "-Xshare:on", "-showversion", "SharedStringsWb");
+
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+
+        try {
+            output.shouldContain("sharing");
+            output.shouldHaveExitValue(0);
+        } catch (RuntimeException e) {
+            output.shouldContain("Unable to use shared archive");
+            output.shouldHaveExitValue(1);
+        }
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SharedArchiveFile/SharedStringsWb.java	Fri Jul 31 10:33:02 2015 -0700
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2013, 2015, 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.
+ */
+
+import sun.hotspot.WhiteBox;
+
+// This class is used by the test SharedStrings.java
+// It should be launched in CDS mode
+public class SharedStringsWb {
+    public static void main(String[] args) throws Exception {
+        WhiteBox wb = WhiteBox.getWhiteBox();
+
+        if (wb.areSharedStringsIgnored()) {
+            System.out.println("Shared strings are ignored, assuming PASS");
+            return;
+        }
+
+        // The string "java" is known to be interened and added to CDS archive
+        String s = "java";
+        String internedS = s.intern();
+
+        if (wb.isShared(internedS)) {
+            System.out.println("Found shared string, result: PASS");
+        } else {
+            throw new RuntimeException("String is not shared, result: FAIL");
+        }
+    }
+}
+
+