RMI API in-process configuration
To prevent a fatal exception within the transformation logic that runs the map and causes the calling process to terminate, you can use the in-process configuration option.
The maps are run within the process of the calling program (in the same JVM). In this mode, there are no RMI calls - a call to the RMI API calls directly to the transformation logic that runs the map. This option is best-suited to a situation where you need optimal performance and the loss of the calling program is not catastrophic.
This option is not recommended for clients running on an application server, since a fatal exception could cause the server process to terminate.