diff -r 00992d4e8a23 -r ccb003941743 test/hotspot/jtreg/serviceability/sa/ClhsdbRegionDetailsScanOopsForG1.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/serviceability/sa/ClhsdbRegionDetailsScanOopsForG1.java	Tue Mar 20 11:24:32 2018 +0530
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2018, 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 java.util.HashMap;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import jdk.test.lib.apps.LingeredApp;
+
+/*
+ * @test
+ * @bug 8175312
+ * @summary Test clhsdb 'g1regiondetails' and 'scanoops' commands for G1GC
+ * @library /test/lib
+ * @requires (vm.bits == "64" & os.maxMemory > 8g)
+ * @run main/othervm/timeout=2400 ClhsdbRegionDetailsScanOopsForG1
+ */
+
+public class ClhsdbRegionDetailsScanOopsForG1 {
+
+    public static void main(String[] args) throws Exception {
+        System.out.println("Starting ClhsdbRegionDetailsScanOopsForG1 test");
+
+        LingeredAppWithLargeStringArray theApp = null;
+        try {
+            ClhsdbLauncher test = new ClhsdbLauncher();
+            List<String> vmArgs = new ArrayList<String>();
+            vmArgs.add("-XX:+UseG1GC");
+            vmArgs.add("-Xmx8g");
+            vmArgs.add("-XX:G1HeapRegionSize=2m");
+
+            theApp = new LingeredAppWithLargeStringArray();
+            LingeredApp.startApp(vmArgs, theApp);
+            System.out.println("Started LingeredAppWithLargeStringArray with pid " + theApp.getPid());
+
+            List<String> cmds = List.of("g1regiondetails");
+            Map<String, List<String>> expStrMap = new HashMap<>();
+            Map<String, List<String>> unExpStrMap = new HashMap<>();
+
+            // Test that the various types of regions are listed with the
+            // 'g1regiondetails' command
+            expStrMap.put("g1regiondetails", List.of(
+                "Region",
+                "Eden",
+                "Survivor",
+                "StartsHumongous",
+                "ContinuesHumongous",
+                "Free"));
+            unExpStrMap.put("g1regiondetails", List.of("Unknown Region Type"));
+            String regionDetailsOutput = test.run(theApp.getPid(), cmds,
+                                                  expStrMap, unExpStrMap);
+            if (regionDetailsOutput == null) {
+                // Output could be null due to attach permission issues
+                // and if we are skipping this.
+                LingeredApp.stopApp(theApp);
+                return;
+            }
+
+            // Test the output of 'scanoops' -- get the start and end addresses
+            // from the StartsHumongous region. Ensure that it contains an
+            // array of Strings.
+            String[] snippets = regionDetailsOutput.split(":StartsHumongous");
+            snippets = snippets[0].split("Region: ");
+            String[] words = snippets[snippets.length - 1].split(",");
+            // words[0] and words[1] represent the start and end addresses
+            String cmd = "scanoops " + words[0] + " " + words[1];
+            expStrMap = new HashMap<>();
+            expStrMap.put(cmd, List.of("[Ljava/lang/String"));
+            test.run(theApp.getPid(), List.of(cmd), expStrMap, null);
+        } catch (Exception ex) {
+            throw new RuntimeException("Test ERROR " + ex, ex);
+        } finally {
+            LingeredApp.stopApp(theApp);
+        }
+        System.out.println("Test PASSED");
+    }
+}