Javadoc fixess
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/service/PreconditionFailedException.java b/core/store/dist/src/main/java/org/onlab/onos/store/service/PreconditionFailedException.java
index f16fc47..8a631a0 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/service/PreconditionFailedException.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/service/PreconditionFailedException.java
@@ -2,7 +2,8 @@
 
 /**
  * Exception that indicates a precondition failure.
- * <ul>Scenarios that can cause this exception:
+ * Scenarios that can cause this exception:
+ * <ul>
  * <li>An operation that attempts to write a new value iff the current value is equal
  * to some specified value.</li>
  * <li>An operation that attempts to write a new value iff the current version
@@ -11,4 +12,4 @@
  */
 @SuppressWarnings("serial")
 public class PreconditionFailedException extends DatabaseException {
-}
+}
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