Fix dangling Javadoc comments

Change-Id: I828f9bdf0c2b2205b9239c2ef5c85aadd83bb3f0
diff --git a/core/store/persistence/src/main/java/org/onosproject/persistence/impl/PersistenceException.java b/core/store/persistence/src/main/java/org/onosproject/persistence/impl/PersistenceException.java
index 4fc0fa9..7056f50 100644
--- a/core/store/persistence/src/main/java/org/onosproject/persistence/impl/PersistenceException.java
+++ b/core/store/persistence/src/main/java/org/onosproject/persistence/impl/PersistenceException.java
@@ -19,11 +19,10 @@
 /**
  * An exception defined for failures of the local persistent store system.
  */
-
-/**
- * Throws an exception with the specified message.
- */
 public class PersistenceException extends RuntimeException {
+    /**
+     * Throws an exception with the specified message.
+     */
     public PersistenceException(String s) {
         super(s);
     }