Fixed findbug issues in BGP.

Change-Id: I3c2fb7433682d1ef3cafb77273849a3f397fb26a
Signed-off-by: Dana Kutenicsova <dkutenic@cisco.com>
Fixed various findbugs issues in util.

Change-Id: I5e31d46ed509596284764cb7a1eba63399789dff
Signed-off-by: Dana Kutenicsova <dkutenic@cisco.com>
Fixed various findbugs issues in PCEP.

Change-Id: I1d1e2d21009a2ce22b8f8e646e8ba3c62eecc545
Signed-off-by: Dana Kutenicsova <dkutenic@cisco.com>