Use exceptionCheck after VMRuntime.newNonMovableArray/addressOf.

Since VMRuntime.newNonMovableArray and VMRuntime.addressOf are java
methods implemented in Native, they don't necessarily return NULL
when an exception is thrown. Checking the exception instead of the
return value fixes errors which may occur if the runtime returns
garbage when an exception is pending.

Bug: 11971220
Change-Id: I70478834c9f14cc5d9e666e1e174d3fd09269719
Fix a bootloop problem when /data/system/usagestats/usage-history.xml is empty.
This often occurs after an incomplete reboot/shutdown or battery pull.

Change-Id: I4f01151f4051df4ae1b85fa460ec7a9e70122878