The P4 allows certain customization.
You can set up a secure connection for P4 communication. More information: Using P4 Protocol Over a Secure Connection
The RMI-P4 provides reliable network connections between remote clients and servers. More information:
To adapt the behavior of the RMI-P4 according to your specific application scenario, you can use properties that are specific to the RMI-P4 implementation on the AS Java. More information: RMI-P4 Specific InitialContext Properties.