We get the following error message:
"We detected that your JVM is not supported by Hudson. This is due to the
limitation is one of the libraries that Hudson uses, namely XStream. See this
FAQ for more details."

Vendor : The FreeBSD Foundation
Version : 10.0-b23
VM Name : Diablo Java HotSpot(TM) Server VM
OS Name : FreeBSD

Tomcat: 5.5.26

Hudson should not use XStream in enhanced mode or should automatically fall back
to pure java mode, whenever an unsupported jvm is detected.