JSPM cannot stop J2EE Engine

I'm trying to apply stack 9 to a new XI installation (nw2004s). The patches are recognized by JSPM and the queue is validated as normal. During the deployment, a lot of jcmon processes are started, and eventually the JSPM says that the java engine could not be stopped by JPSM. I found note 985496 and tried to set the Java engine to safe mode manually, but this doesn't seem to work. I can remember that Visual Administrator would give a warning when the engine was in safe mode. But now, the safe mode is set in Configtool but Visual Administrator does not give a warning about this. It seems that the engine does not go into safe mode, even when instructed to do so via the setting in the configtool. The installation is nw2004s patch level 4.

Does anybody know how I can het the JSPM to work?

Best regards, Wilbert