Fix javadoc sleep method.
@@ -119,7 +119,7 @@ public void run() {
* Sleeps for a guaranteed minimum duration unless interrupted.
*
* This method exists because Thread.sleep(100) can sleep for 0, 70, 100 or 200ms or anything else
- * it deems appropriate. Read {@link Thread#sleep()} for further interesting details.
+ * it deems appropriate. Read {@link Thread#sleep(long, int)}} for further interesting details.
*
* @param duration the sleep duration.
* @throws InterruptedException if interrupted
