Fix for onUpdatedInputResource for android resource container extension

Fix for onUpdatedInputResource for android resource container extension

Several issues had to be fixed to make the automated update
of input data for soft sensors running on Android available.

Fix for concurreny crash issue. Concurrent access on resources is now synchronized.

Renaming. Avoiding the use of Android in APIs, since JNI wrapper could be useable for any type of Java platform.

Added check for null values for JNI class and method references.

Change-Id: Ib120c2a22efca3bc8d4286f51efd9bdc71aaa3f4
Signed-off-by: Markus Jung <markus.jung@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/4717
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Uze Choi <uzchoi@samsung.com>