--- old/src/jdk.management/share/classes/com/sun/management/ThreadMXBean.java	2019-08-28 07:32:54.000000000 -0700
+++ new/src/jdk.management/share/classes/com/sun/management/ThreadMXBean.java	2019-08-28 07:32:53.000000000 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 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
@@ -109,13 +109,44 @@
 
     /**
      * Returns an approximation of the total amount of memory, in bytes,
-     * allocated in heap memory for the thread of the specified ID.
+     * allocated in heap memory for the current thread.
      * The returned value is an approximation because some Java virtual machine
      * implementations may use object allocation mechanisms that result in a
      * delay between the time an object is allocated and the time its size is
      * recorded.
      * <p>
-     * If the thread of the specified ID is not alive or does not exist,
+     * If thread memory allocation measurement is disabled, this method returns
+     * {@code -1}.
+     * <p>
+     * If thread memory allocation measurement is enabled after the current thread
+     * has started, the Java virtual machine implementation may choose any time up
+     * to and including the time that the capability is enabled as the point
+     * where thread memory allocation measurement starts.
+     *
+     * @return an approximation of the total memory allocated, in bytes, in
+     * heap memory for the current thread
+     * if thread memory allocation measurement is enabled;
+     * {@code -1} otherwise.
+     *
+     * @throws java.lang.UnsupportedOperationException if the Java virtual
+     *         machine implementation does not support thread memory allocation
+     *         measurement.
+     *
+     * @see #isThreadAllocatedMemorySupported
+     * @see #isThreadAllocatedMemoryEnabled
+     * @see #setThreadAllocatedMemoryEnabled
+     */
+    public long getCurrentThreadAllocatedBytes();
+
+    /**
+     * Returns an approximation of the total amount of memory, in bytes,
+     * allocated in heap memory for the thread with the specified ID.
+     * The returned value is an approximation because some Java virtual machine
+     * implementations may use object allocation mechanisms that result in a
+     * delay between the time an object is allocated and the time its size is
+     * recorded.
+     * <p>
+     * If the thread with the specified ID is not alive or does not exist,
      * this method returns {@code -1}. If thread memory allocation measurement
      * is disabled, this method returns {@code -1}.
      * A thread is alive if it has been started and has not yet died.
@@ -127,8 +158,8 @@
      *
      * @param id the thread ID of a thread
      * @return an approximation of the total memory allocated, in bytes, in
-     * heap memory for a thread of the specified ID
-     * if the thread of the specified ID exists, the thread is alive,
+     * heap memory for the thread with the specified ID
+     * if the thread with the specified ID exists, the thread is alive,
      * and thread memory allocation measurement is enabled;
      * {@code -1} otherwise.
      *