--- a/jdk/src/java.management/share/classes/java/lang/management/ThreadInfo.java	Tue Nov 01 17:20:45 2016 -0700
+++ b/jdk/src/java.management/share/classes/java/lang/management/ThreadInfo.java	Thu Nov 03 12:04:40 2016 +0530
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2016, 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
@@ -554,7 +554,7 @@
      * @return an array of {@code StackTraceElement} objects of the thread.
      */
     public StackTraceElement[] getStackTrace() {
-        return stackTrace;
+        return stackTrace.clone();
     }
 
     /**
@@ -868,7 +868,7 @@
      * @since 1.6
      */
     public MonitorInfo[] getLockedMonitors() {
-        return lockedMonitors;
+        return lockedMonitors.clone();
     }
 
     /**
@@ -885,7 +885,7 @@
      * @since 1.6
      */
     public LockInfo[] getLockedSynchronizers() {
-        return lockedSynchronizers;
+        return lockedSynchronizers.clone();
     }
 
     private static final StackTraceElement[] NO_STACK_TRACE =