commit 208771133a2ac365c52ec080e3d514c6c677d7f2
author Franck Lenormand <franckx.lenormand@intel.com> Wed Apr 08 15:21:36 2015 +0200
committer Andre Eisenbach <eisenbach@google.com> Mon Mar 07 20:56:54 2016 +0000
tree 2204cd3177517f9cc5c58a232a64149749223c2e
parent 4f5e5448bc2a5a3676a703235d196e9c05a3468d

Prevent javacrash when TELEPHONY_SERVICE is not found

The API context.getSystemService can return NULL
A Javacrash can happend when trying to obtain the TELEPHONY_SERVICE
and getting null instead.

The patch warn about the value of the instance of the service returned.
It also log and prevent its use in function startListenForPhoneState and
stopListenForPhoneState.

If the TELEPHONY_SERVICE is not available, the internal variables wont
change.

Change-Id: I9e4abc88a58f7f037bbc4f3f7c1cf1b44328ce38
Signed-off-by: franck Lenormand <franckx.lenormand@intel.com>
Signed-off-by: Zhiquan Liu <zhiquan.liu@intel.com>