src/main/java/com/alipay/remoting/rpc/protocol/RpcRequestProcessor.java
private boolean deserializeRequestCommand(RemotingContext ctx, RpcRequestCommand cmd, int level) {
        boolean result;
        try {
            cmd.deserialize(level);
            result = true;
        } catch (DeserializationException e) {
            logger
                .error(
                    "DeserializationException occurred when process in RpcRequestProcessor, id={}, deserializeLevel={}",
                    cmd.getId(), RpcDeserializeLevel.valueOf(level), e);
            sendResponseIfNecessary(ctx, cmd.getType(), this.getCommandFactory()
                .createExceptionResponse(cmd.getId(), ResponseStatus.SERVER_DESERIAL_EXCEPTION, e));
            result = false;
        } catch (Throwable t) {
            String errMsg = "Deserialize RpcRequestCommand failed in RpcRequestProcessor, id="
                            + cmd.getId() + ", deserializeLevel=" + level;
            logger.error(errMsg, t);
            sendResponseIfNecessary(ctx, cmd.getType(), this.getCommandFactory()
                .createExceptionResponse(cmd.getId(), t, errMsg));
            result = false;
        }
        return result;
    }
private boolean deserializeRequestCommand(RemotingContext ctx, RpcRequestCommand cmd, int level) {
        boolean result;
        try {
            cmd.deserialize(level);
            result = true;
        } catch (DeserializationException e) {
            logger
                .error(
                    "DeserializationException occurred when process in RpcRequestProcessor, id={}, deserializeLevel={}",
                    cmd.getId(), RpcDeserializeLevel.valueOf(level), e);
            sendResponseIfNecessary(ctx, cmd.getType(), this.getCommandFactory()
                .createExceptionResponse(cmd.getId(), ResponseStatus.SERVER_DESERIAL_EXCEPTION, e));
            result = false;
        } catch (Throwable t) {
            String errMsg = "Deserialize RpcRequestCommand failed in RpcRequestProcessor, id="
                            + cmd.getId() + ", deserializeLevel=" + level;
            logger.error(errMsg, t);
            sendResponseIfNecessary(ctx, cmd.getType(), this.getCommandFactory()
                .createExceptionResponse(cmd.getId(), t, errMsg));
            result = false;
        }
        return result;
    }
deserialize request command

@return true if deserialize success; false if exception catched