Hooking up a couple of missing cause chains in the server-side RPC exception handling code.

Also added a hack to dump a particular exception case to the console, to help us debug
an intermittent RPC test failure condition.

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@5183 8db76d5a-ed1c-0410-87a9-c151d255dfc7
2 files changed