Crash on linux: com.comsol.nativejni.geom.Geom3.createGeom3(Lcom/comsol/nativejni/CPointer;I)V

Hello,
I have a java application which can run in standalone mode as well. When running on Windows (either from the Desktop GUI or in standalone mode), or on Linux (from the Desktop GUI), it runs without problems. When I try to run it on linux in standalone mode, it crashes with the following error message:

FATAL ERROR OCCURED: com.comsol.nativejni.geom.Geom3.createGeom3(Lcom/comsol/nativejni/CPointer;I)V
Fatal error occured: com.comsol.nativejni.geom.Geom3.createGeom3(Lcom/comsol/nativejni/CPointer;I)V

It happens both in versions 4.3b and 4.4

I am trying to figure out the problem, but in case anybody can give a quick hint what to look after, that would be a great help.

Thank you very much
Daniel

[edit]
Sorry, the 'Fatal error occured' text is produced my code. An exception is thrown somewhere in COMSOL, with the message 'com.comsol.nativejni.geom.Geom3.createGeom3(Lcom/comsol/nativejni/CPointer;I)V'