1) Modified JNI to fix few issues.

1) Modified JNI to fix few issues.

2) Update cpp-wrapper code causing issue with JAVA API's.

Change-Id: I55b5b0d85fce9011287868773e17144f9ce4ea61
Signed-off-by: nikhil.a <nikhil.a7@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/11005
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Uze Choi <uzchoi@samsung.com>
Tested-by: Uze Choi <uzchoi@samsung.com>
(cherry picked from commit dfd2b5b33435d137d2344482bba6d9d5710e8823)
Reviewed-on: https://gerrit.iotivity.org/gerrit/11039
Reviewed-by: Madan Lanka <lanka.madan@samsung.com>