Fixing the corrupted Java installation after upgrading to 10.3.9

10.3.9 upgrade seems to corrupt the Java installation, symptoms are segmentation fault when invoking java tools from the command line, crash of InterfaceBuilder if EOF palette is installed (WebObject developer), etc.
Solutions:

get the Java142Update2.pkg from
Apple Site

open it with Pacifist or equivalent
re-install only the JavaVM.framework

Your Java is now back on trail.
You will still get

HotSpot not at correct virtual address. Sharing disabled.
that should disapear after rebooting.

other people have reinstalled the security Update 2005-02 again and it seems to fix the problem too.
... confirmed by official note from
Apple