Fixed a few SonarQube identified issues

Fixed a few SonarQube identified issues

JniListenerManager tried to modify its list inside of a for-loop,
which causes undefined behavior.  2 spots where there was un-initialized
variables.

Change-Id: I5da2cd39cef1dadcd05c743d8fc5e0db0a8f2679
Signed-off-by: Erich Keane <erich.keane@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/2033
Reviewed-by: Tim Kourt <tim.a.kourt@intel.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jon A. Cruz <jonc@osg.samsung.com>