8214457: Miscellaneous changes imported from jsr166 CVS 2018-12

Reviewed-by: martin

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

@@ -122,7 +122,7 @@ import java.util.concurrent.TimeUnit;
  * <p>All {@code Lock} implementations <em>must</em> enforce the same
  * memory synchronization semantics as provided by the built-in monitor
  * lock, as described in
- * <a href="https://docs.oracle.com/javase/specs/jls/se8/html/jls-17.html#jls-17.4">
+ * <a href="https://docs.oracle.com/javase/specs/jls/se11/html/jls-17.html#jls-17.4">
  * Chapter 17 of
  * <cite>The Java&trade; Language Specification</cite></a>:
  * <ul>

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

@@ -133,7 +133,7 @@ import jdk.internal.vm.annotation.ReservedStackAccess;
  * <p><b>Memory Synchronization.</b> Methods with the effect of
  * successfully locking in any mode have the same memory
  * synchronization effects as a <em>Lock</em> action described in
- * <a href="https://docs.oracle.com/javase/specs/jls/se8/html/jls-17.html#jls-17.4">
+ * <a href="https://docs.oracle.com/javase/specs/jls/se11/html/jls-17.html#jls-17.4">
  * Chapter 17 of <cite>The Java&trade; Language Specification</cite></a>.
  * Methods successfully unlocking in write mode have the same memory
  * synchronization effects as an <em>Unlock</em> action.  In optimistic

src/java.base/share/classes/java/util/concurrent/package-info.java

@@ -226,7 +226,7 @@
  *
  * <h2 id="MemoryVisibility">Memory Consistency Properties</h2>
  *
- * <a href="https://docs.oracle.com/javase/specs/jls/se8/html/jls-17.html#jls-17.4.5">
+ * <a href="https://docs.oracle.com/javase/specs/jls/se11/html/jls-17.html#jls-17.4.5">
  * Chapter 17 of
  * <cite>The Java&trade; Language Specification</cite></a> defines the
  * <i>happens-before</i> relation on memory operations such as reads and