@Override
    public Object handleRequest(BizContext bizCtx, T request) throws Exception {
        throw new UnsupportedOperationException(
            "SYNC handle request is unsupported in AsyncUserProcessor!");
    }
unsupported here!

@see com.alipay.remoting.rpc.protocol.UserProcessor#handleRequest(com.alipay.remoting.BizContext, java.lang.Object)
src/main/java/com/alipay/remoting/rpc/protocol/AsyncUserProcessor.java