Tomcat (Java) problems on FBSD 4.8

[Julian Rawcliffe]

After being reminded that tomcat cannot work on 5.x at the moment,
I reverted to a 4.6 machine, upgraded to 4.8 and installed the required
Java packages, but attempting to start Tomcat (or java -version) gives:

# tomcat41ctl start
>> Reading PID file (/var/run/tomcat41.pid)... [ DONE ]
>> Starting Jakarta Tomcat 4.1.27... [ DONE ]
>> Writing PID file... [ DONE ]

elf_load_section: truncated ELF file

I'm running 4,8-RELEASE.

I've checked the foundation and fbsd java websites but can't find
anything that says there should be a problem.
What am I missing?

Julian