How to find out if J2EE Engine is PROD or TEST or DEV System

Hi,

I want to get the system state / system type (even if si PROD or TEST or DEVELOP system) of the J2EE-Engine at runtime, because to use different properties.

How can I find this information and how can I get this info in Java?

Thanks for help.

Sven Rickelt

we use: SAP Web AS 6.40 SP 13 (Netweaver 2004)