This is a bug/rfe for Xcheck:jni to help customers find bugs quicker instead
of filing a bug and asking us to figure out they are doing something wrong.

The problem is that a test program could pass a "jobject"
to GetStaticDoubleField rather than a jclass. Since the class is static, the
GetStatic accessors require the class instead of a instance of the class. We should be more graceful in our detection of this condition rather than crashing.