Using the abovementioned cofiguration when opening spring xml files it crashed with little to no helpful message:

A stack overflow has occured.
...
See the .log for more details.

After that another message box shows with:

Unhandled event loop exception (Time of error ...)
Reason: java.lang.StackOverflow

I already tried with 20m3 release and also with 1.3.6 with same results...

Anybody can help...