--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/cds/SharedStrings.java	Mon Jul 29 10:34:20 2019 -0400
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2015, 2019, 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
+ * @requires vm.cds.archived.java.heap
+ * @library /test/lib
+ * @modules java.base/jdk.internal.misc
+ *          java.management
+ * @build SharedStringsWb sun.hotspot.WhiteBox
+ * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox
+ * @run driver SharedStrings
+ */
+
+import jdk.test.lib.cds.CDSTestUtils;
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.process.OutputAnalyzer;
+
+public class SharedStrings {
+    public static void main(String[] args) throws Exception {
+        // Note: This is a basic sanity test for Shared Strings feature.
+        // This also serves as a reference on how to use this feature,
+        // hence the command lines are spelled out instead of using the
+        // test utils methods.
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=./SharedStrings.jsa",
+            "-Xlog:cds,cds+hashtables",
+            // Needed for bootclasspath match, for CDS to work with WhiteBox API
+            "-Xbootclasspath/a:" + ClassFileInstaller.getJarPath("whitebox.jar"),
+            "-Xshare:dump");
+
+        OutputAnalyzer out = CDSTestUtils.executeAndLog(pb, "dump");
+        CDSTestUtils.checkDump(out, "Shared string table stats");
+
+
+        pb = ProcessTools.createJavaProcessBuilder(
+                "-XX:+UnlockDiagnosticVMOptions",
+                "-XX:SharedArchiveFile=./SharedStrings.jsa",
+                // needed for access to white box test API
+                "-Xbootclasspath/a:" + ClassFileInstaller.getJarPath("whitebox.jar"),
+                "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI",
+                "-Xshare:on", "-showversion", "SharedStringsWb");
+
+        out = CDSTestUtils.executeAndLog(pb, "exec");
+        CDSTestUtils.checkExec(out);
+    }
+}