private void releaseCommBuffers() {
    ByteBuffer bb = commBuffer;
    if (bb != null) {
      commBuffer = null;
      ServerConnection.releaseCommBuffer(bb);
    }
    bb = commBufferForAsyncRead;
    if (bb != null) {
      commBufferForAsyncRead = null;
      ServerConnection.releaseCommBuffer(bb);
    }
  }
Test hook to simulate a client crashing. If true, we will not notify the server when we close
the connection.
geode-core/src/main/java/org/apache/geode/cache/client/internal/ConnectionImpl.java