ConcurrentHashMap typo

Typo that crept in during a refactoring.

http://cs.oswego.edu/pipermail/concurrency-interest/2013-August/011695.html

This change is already in the jsr166 CVS.

diff --git a/src/share/classes/java/util/concurrent/ConcurrentHashMap.java b/src/share/classes/java/util/concurrent/ConcurrentHashMap.java
--- a/src/share/classes/java/util/concurrent/ConcurrentHashMap.java
+++ b/src/share/classes/java/util/concurrent/ConcurrentHashMap.java
@@ -2785,7 +2785,7 @@ public class ConcurrentHashMap<K,V> exte
                         return;
                     }
                 }
- else if ((s | WAITER) == 0) {
+ else if ((s & WAITER) == 0) {
                     if (U.compareAndSwapInt(this, LOCKSTATE, s, s | WAITER)) {
                         waiting = true;
                         waiter = Thread.currentThread();