Function initialize_remoting_command_factory 

pub fn initialize_remoting_command_factory(
    version: i32,
) -> Result<RemotingCommandFactory, ProtocolContractViolation>

Initializes the immutable defaults used by all business command factories.

rocketmq.serialize.type takes precedence over ROCKETMQ_SERIALIZE_TYPE. Unsupported values fail startup instead of silently selecting JSON.

Errors

Returns ProtocolContractViolation when configuration is invalid or a different process default was initialized earlier.