Remove possible leak when exception occurred.

nameUtf8 is not released after exception.
In addtion, Fix code going down after ThrowException.

Change-Id: Id46e8ed55acd98e982ae532f7da2c0c48847f010
Update preloaded-classes

Change-Id: I42247e498ad532e3f4699bc87c0d314cde74e3f6