THRIFT-768. java: Async client for Java

This patch adds an implementation of a fully-asynchronous client that makes use of NIO. Stubs for the async method calls are generated along with the existing synchronous ones.

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@948492 13f79535-47bb-0310-9956-ffa450edef68
13 files changed