commit ea51776f49a891e1f470d2b24e5176036b915f08
author Satish Kodishala <skodisha@codeaurora.org> Thu Feb 11 15:00:13 2016 +0530
committer Myles Watson <mylesgw@google.com> Wed Feb 28 14:14:09 2018 +0000
tree 25480274ac48d9f5320cf41e9d28e1151b1cdc99
parent 7b7567ceeaf2122d0adc030adf2c947f038fab4c

Send empty string for redial

Test: 1. Enable HFP Client.
2. Discover, pair and connect to remote device.
3. Once connected, redial from hf client.

Failure:
There is a crash since NULL is sent from application
to the stack for redial.

Rootcause:
Application sending NULL for redial to the stack.

Fix:
For redial, NULL is sent from application to stack.
Due to NULL checks in JNI, there was an exception
generated while calling stack API. Send empty string
instead of null.

Fixes: 35415608
Change-Id: I1ee4b8c5fa43e005da228df1bd260d99d96a8913