Barring a mechanism in Seaside3.1 for controlling which clases to use here, we have to stomp on the method ... In GemStone, a separate gem does the work of reaping stale sessions ([maintencance vm](https://code.google.com/p/glassdb/wiki/MaintenanceVMTasks)), thus the **WANoReapingStrategy** ... there may be a better option for this one as I recall Philippe doing something in this area at one time ...

**WARcLastAccessExpiryPolicy** is there because we have to use an RC variant  ... and in this case it is not as easy as simply swapping in an RC class ....