Update findbugs versions.

- Update findbugs and maven plugins to 2.0.3 and 2.5.4.
- Fix for bugs detected by new version of findbugs

Note:
 If you see "dependencies could not be resolved" error,
 running "mvn clean verify -U" to force maven to check for new version in
 remote repository might resolve the issue.

Change-Id: I26661aaf5d791980b0ab161649022e5bb7cf045d
diff --git a/src/main/java/net/onrc/onos/apps/sdnip/web/IncomingRequestResource.java b/src/main/java/net/onrc/onos/apps/sdnip/web/IncomingRequestResource.java
index 705c5f1..690ec4d 100644
--- a/src/main/java/net/onrc/onos/apps/sdnip/web/IncomingRequestResource.java
+++ b/src/main/java/net/onrc/onos/apps/sdnip/web/IncomingRequestResource.java
@@ -109,7 +109,7 @@
             Prefix p;
             long sysUpTime, sequenceNum;
             try {
-                p = new Prefix(prefix, Integer.valueOf(mask));
+                p = new Prefix(prefix, Integer.parseInt(mask));
                 sysUpTime = Long.parseLong(strSysuptime);
                 sequenceNum = Long.parseLong(strSequence);
             } catch (NumberFormatException e) {
@@ -174,7 +174,7 @@
             Prefix p;
             long sysUpTime, sequenceNum;
             try {
-                p = new Prefix(prefix, Integer.valueOf(mask));
+                p = new Prefix(prefix, Integer.parseInt(mask));
                 sysUpTime = Long.parseLong(strSysuptime);
                 sequenceNum = Long.parseLong(strSequence);
             } catch (NumberFormatException e) {