Throw OcException for invalid (null) parameters in Java Layer of android_api.

Throw OcException for invalid (null) parameters in Java Layer of android_api.

[IOT-1254] -- OcPlatform.notifyListOfObservers() ocObservationIdList is null.
[IOT-1255] -- OcResource.observe() observeType is null.
[IOT-1256] -- OcPlatform.bindResources() ocResourceHandleList is null.
[IOT-1257] -- OcPlatform.unbindResources() ocResourceHandleList is null.

Change-Id: Ib1c20dba6d0e85a05e8099ba1276d65334560c9d
Signed-off-by: Larry Sachs <larry.j.sachs@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/11875
Reviewed-by: George Nash <george.nash@intel.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Rick Bell <richard.s.bell@intel.com>