--- jsr166/src/jsr166e/extra/SequenceLock.java	2012/10/21 06:14:11	1.2
+++ jsr166/src/jsr166e/extra/SequenceLock.java	2015/01/18 20:17:33	1.7
@@ -5,6 +5,7 @@
  */
 
 package jsr166e.extra;
+
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 import java.util.concurrent.locks.Lock;
@@ -40,7 +41,7 @@ import java.io.IOException;
  * threads invoke short read-only methods much more frequently than
  * fully locked methods.
  *
- * <p> Methods {@code awaitAvailability} and {@code getSequence} can
+ * <p>Methods {@code awaitAvailability} and {@code getSequence} can
  * be used together to define (partially) optimistic read-only methods
  * that are usually more efficient than ReadWriteLocks when they
  * apply.  These methods should in general be structured as loops that
@@ -109,7 +110,7 @@ public class SequenceLock implements Loc
     private static final long serialVersionUID = 7373984872572414699L;
 
     static final class Sync extends AbstractQueuedLongSynchronizer {
-        static final long serialVersionUID = 2540673546047039555L;
+        private static final long serialVersionUID = 2540673546047039555L;
 
         /**
          * The number of times to spin in lock() and awaitAvailability().
@@ -257,8 +258,10 @@ public class SequenceLock implements Loc
 
     /**
      * Creates an instance of {@code SequenceLock} that will retry
-     * attempts to acquire the lock at least the given number times
+     * attempts to acquire the lock at least the given number of times
      * before blocking.
+     *
+     * @param spins the number of times before blocking
      */
     public SequenceLock(int spins) { sync = new Sync(spins); }
 
@@ -508,7 +511,7 @@ public class SequenceLock implements Loc
      * Throws UnsupportedOperationException. SequenceLocks
      * do not support Condition objects.
      *
-     * @throws UnsupportedOperationException
+     * @throws UnsupportedOperationException always
      */
     public Condition newCondition() {
         throw new UnsupportedOperationException();