Add programatic shutdown option to Java Thrift servers

Summary: Same paradigm as in C++ model. Allow ServerTransport to be interrupted to block an accept loop and cleanly stop serving client requests.

Reviewed By: dreiss

Test Plan: Invoke shutdown() method on a TServer


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665322 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/java/src/server/TServer.java b/lib/java/src/server/TServer.java
index d5f95f6..2ac322a 100644
--- a/lib/java/src/server/TServer.java
+++ b/lib/java/src/server/TServer.java
@@ -105,4 +105,10 @@
    */
   public abstract void serve();
 
+  /**
+   * Stop the server. This is optional on a per-implementation basis. Not
+   * all servers are required to be cleanly stoppable.
+   */
+  public void stop() {}
+
 }