THRIFT-2402: byte count of FrameBuffer in AWAITING_CLOSE state is not…

… subtracted from readBufferBytesAllocated

Client: java
Patch: jfarrell

Addresses issue where changeSelectInterests would cause close() to occur in the AWAITING_CLOSE state and readBufferBytesAllocated was never called

lib/java/src/org/apache/thrift/server/AbstractNonblockingServer.java

@@ -455,7 +455,9 @@ public void changeSelectInterests() {
     public void close() {
       // if we're being closed due to an error, we might have allocated a
       // buffer that we need to subtract for our memory accounting.
-      if (state_ == FrameBufferState.READING_FRAME || state_ == FrameBufferState.READ_FRAME_COMPLETE) {
+      if (state_ == FrameBufferState.READING_FRAME || 
+          state_ == FrameBufferState.READ_FRAME_COMPLETE ||
+          state_ == FrameBufferState.AWAITING_CLOSE) {
         readBufferBytesAllocated.addAndGet(-buffer_.array().length);
       }
       trans_.close();