another problem with JOGLAppletLauncher

If I understand correct:- The JOGL-jars should be placed in java/jre/lib/ext, but for the JOGLAppletLauncher to work correctly, they are not allowed there?
Where can I put those jars then?

For correct operation the JOGL jars should never be placed in jre/lib/ext. This is explicitly stated in the JOGL User’s Guide. If you’re developing with JOGL, you should put the jogl.jar and native libraries into a folder somewhere and set up the CLASSPATH and PATH / LD_LIBRARY_PATH / DYLD_LIBRARY_PATH environment variables. End users using a JOGL-based application will typically launch that app via either Java Web Start or the Java Plug-In and in these deployment scenarios no manual installation of JOGL is necessary.