Cleaned up a slew of Javadoc errors in preparation for switch over to Java 8.
diff --git a/core/api/src/main/java/org/onlab/onos/net/intent/IntentState.java b/core/api/src/main/java/org/onlab/onos/net/intent/IntentState.java
index 0050718..3fbe82d 100644
--- a/core/api/src/main/java/org/onlab/onos/net/intent/IntentState.java
+++ b/core/api/src/main/java/org/onlab/onos/net/intent/IntentState.java
@@ -24,8 +24,9 @@
      * Signifies that the intent has been submitted and will start compiling
      * shortly. However, this compilation may not necessarily occur on the
      * local controller instance.
-     * <p/>
+     * <p>
      * All intent in the runtime take this state first.
+     * </p>
      */
     SUBMITTED,
 
@@ -57,10 +58,11 @@
      * as an attempt to adapt to an anomaly in the network environment.
      * This is a transitional state after which the intent will enter either
      * {@link #FAILED} state or {@link #INSTALLING} state.
-     * <p/>
+     * <p>
      * Exit to the {@link #FAILED} state may be caused by failure to compile
      * or by compiling into the same set of installable intents which have
      * previously failed to be installed.
+     * </p>
      */
     RECOMPILING,