Checkstyle: verify to catch more errors (#3048)
Checkstyle: verify to catch more errors (#3048)

* Checkstyle: verify to catch more errors

intentionet/batfish,dhalperi/batfish,arifogel/batfish,batfish/batfish,arifogel/batfish,batfish/batfish,intentionet/batfish,intentionet/batfish,dhalperi/batfish,batfish/batfish,intentionet/batfish,dhalperi/batfish,intentionet/batfish,arifogel/batfish