Handle BluetoothAdapter Null

Prevent CarBluetoothService from killing car service in the event that
there is no default Bluetooth adapter.

Bug: 141396155
Test: boot car emulator
Change-Id: Idda6240710ae572bc3715825ded6e9bc3365ee0f
Merged-In: Idda6240710ae572bc3715825ded6e9bc3365ee0f
diff --git a/service/src/com/android/car/CarBluetoothService.java b/service/src/com/android/car/CarBluetoothService.java
index 54d15a1..92f79ed 100644
--- a/service/src/com/android/car/CarBluetoothService.java
+++ b/service/src/com/android/car/CarBluetoothService.java
@@ -222,6 +222,8 @@
                 } catch (RemoteException e) {
                     Log.e(TAG, "Remote Service Exception on ServiceConnection Callback: "
                             + e.getMessage());
+                } catch (java.lang.NullPointerException e) {
+                    Log.e(TAG, "Initialization Failed: " + e.getMessage());
                 }
             }
         }