debugging tjvm classpath (Timesys Realtime)

Hello, 

i'm trying to use jswat for debugging the Timesys Realtime JVM.
However, this vm does not accept th -cp flag jswat is using for
setting the classpath.
Is there a possibility configuring jswat to launch the vm with either
env CLASSPATH or using -Djava.class.path?

Thanks, 
Rob