some pom file fixes

Change-Id: Iffdb6eeb6954551d0b11e8da237b86e905d4e714
diff --git a/pom.xml b/pom.xml
index f537f55..4290769 100644
--- a/pom.xml
+++ b/pom.xml
@@ -290,6 +290,10 @@
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
             <artifactId>slf4j-jdk14</artifactId>
         </dependency>
     </dependencies>
@@ -440,9 +444,6 @@
                 <version>3.2</version>
                 <configuration>
                     <excludes>
-                        <exclude>**/datastore/serializers/**</exclude>
-                        <exclude>**/edu/stanford/**</exclude>
-                        <exclude>**/net/floodlightcontroller/**</exclude>
                     </excludes>
                     <rulesets>
                         <ruleset>onos/pmd.xml</ruleset>
@@ -551,9 +552,6 @@
                 <version>3.2</version>
                 <configuration>
                     <excludes>
-                        <exclude>**/datastore/serializers/**</exclude>
-                        <exclude>**/edu/stanford/**</exclude>
-                        <exclude>**/net/floodlightcontroller/**</exclude>
                     </excludes>
                     <rulesets>
                         <ruleset>onos/pmd.xml</ruleset>