src/java.base/share/classes/java/util/concurrent/locks/LockSupport.java

8211283: Miscellaneous changes imported from jsr166 CVS 2018-11
Reviewed-by: martin, chegar

@@ -197,14 +197,15 @@
 
     /**
      * Disables the current thread for thread scheduling purposes, for up to
      * the specified waiting time, unless the permit is available.
      *
-     * <p>If the permit is available then it is consumed and the call
-     * returns immediately; otherwise the current thread becomes disabled
-     * for thread scheduling purposes and lies dormant until one of four
-     * things happens:
+     * <p>If the specified waiting time is zero or negative, the
+     * method does nothing. Otherwise, if the permit is available then
+     * it is consumed and the call returns immediately; otherwise the
+     * current thread becomes disabled for thread scheduling purposes
+     * and lies dormant until one of four things happens:
      *
      * <ul>
      * <li>Some other thread invokes {@link #unpark unpark} with the
      * current thread as the target; or
      *

@@ -325,14 +326,15 @@
 
     /**
      * Disables the current thread for thread scheduling purposes, for up to
      * the specified waiting time, unless the permit is available.
      *
-     * <p>If the permit is available then it is consumed and the call
-     * returns immediately; otherwise the current thread becomes disabled
-     * for thread scheduling purposes and lies dormant until one of four
-     * things happens:
+     * <p>If the specified waiting time is zero or negative, the
+     * method does nothing. Otherwise, if the permit is available then
+     * it is consumed and the call returns immediately; otherwise the
+     * current thread becomes disabled for thread scheduling purposes
+     * and lies dormant until one of four things happens:
      *
      * <ul>
      * <li>Some other thread invokes {@link #unpark unpark} with the
      * current thread as the target; or
      *