tree fc60fe79191e1fc4ea2ae5d273e7d7dfcfb3f61c
parent d39d900e73a6d7d428d4f5800260f5ff6fd3ce12
author Todd Wang <toddw@google.com> 1463479935 -0700
committer Todd Wang <toddw@google.com> 1463479935 -0700

Make it easier to debug jni.

The ExceptionDescribe call dumps the java stacktrace, which is
really useful when you're trying to figure out what exactly
failed.

Also, jValue used to return a bool, swallowing errors for no
apparent reason.  I've changed that to return an error.

MultiPart: 1/2
Change-Id: I9c4451fd739bf6108b753ba13fc73adaafdc1423