--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/NMT/HugeArenaTracking.java	Tue Nov 26 09:27:16 2019 -0500
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2019, Red Hat, Inc. All rights reserved.
+ *
+ * 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
+ * @key nmt jcmd
+ * @library /test/lib
+ * @modules java.base/jdk.internal.misc
+ *          java.management
+ * @build sun.hotspot.WhiteBox
+ * @run driver ClassFileInstaller sun.hotspot.WhiteBox
+ *                              sun.hotspot.WhiteBox$WhiteBoxPermission
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail HugeArenaTracking
+ */
+
+import java.util.Random;
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.JDKToolFinder;
+import sun.hotspot.WhiteBox;
+
+public class HugeArenaTracking {
+  private static final long GB = 1024 * 1024 * 1024;
+
+  public static void main(String args[]) throws Exception {
+    OutputAnalyzer output;
+    final WhiteBox wb = WhiteBox.getWhiteBox();
+
+    // Grab my own PID
+    String pid = Long.toString(ProcessTools.getProcessId());
+    ProcessBuilder pb = new ProcessBuilder();
+
+    long arena1 = wb.NMTNewArena(1024);
+    long arena2 = wb.NMTNewArena(1024);
+
+    // Run 'jcmd <pid> VM.native_memory summary'
+    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("Test (reserved=2KB, committed=2KB)");
+
+    Random rand = new Random();
+
+    // Allocate 2GB+ from arena
+    long total = 0;
+    while (total < 2 * GB) {
+      // Cap to 10M
+      long inc = rand.nextInt(10 * 1024 * 1024);
+      wb.NMTArenaMalloc(arena1, inc);
+      total += inc;
+    }
+
+    ProcessBuilder pb2 = new ProcessBuilder();
+    // Run 'jcmd <pid> VM.native_memory summary'
+    pb2.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=GB"});
+    output = new OutputAnalyzer(pb2.start());
+    output.shouldContain("Test (reserved=2GB, committed=2GB)");
+
+    wb.NMTFreeArena(arena1);
+
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("Test (reserved=1KB, committed=1KB)");
+    wb.NMTFreeArena(arena2);
+
+    output = new OutputAnalyzer(pb.start());
+    output.shouldNotContain("Test (reserved");
+  }
+}