public void removeReadTimeoutHandler() {
        // Remove (and therefore destroy) the readTimeoutHandler when we release the
        // channel back to the pool. As don't want it timing-out when it's not in use.
        ChannelPipeline pipeline = getChannel().pipeline();
        removeHandlerFromPipeline(READ_TIMEOUT_HANDLER_NAME, pipeline);
    }
Can not be put in pool
zuul-core/src/main/java/com/netflix/zuul/netty/connectionpool/PooledConnection.java