Fixing javadocs.

Change-Id: I100488664315af9c1b7faffab2d66ea3263d57ca
diff --git a/utils/misc/src/main/java/org/onlab/util/BlockingBoolean.java b/utils/misc/src/main/java/org/onlab/util/BlockingBoolean.java
index cffdc1a..f3049c3 100644
--- a/utils/misc/src/main/java/org/onlab/util/BlockingBoolean.java
+++ b/utils/misc/src/main/java/org/onlab/util/BlockingBoolean.java
@@ -40,7 +40,7 @@
      * value unless the thread is {@linkplain Thread#interrupt interrupted}.
      *
      * @param value specified value
-     * @throws InterruptedException
+     * @throws InterruptedException if interrupted while waiting
      */
     public void await(boolean value) throws InterruptedException {
         acquireSharedInterruptibly(value ? TRUE : FALSE);
@@ -56,7 +56,7 @@
      * @param unit the time unit of the {@code timeout} argument
      * @return {@code true} if the count reached zero and {@code false}
      *         if the waiting time elapsed before the count reached zero
-     * @throws InterruptedException
+     * @throws InterruptedException if interrupted while waiting
      */
     public boolean await(boolean value, long timeout, TimeUnit unit)
             throws InterruptedException {