clear, but it's not allowed to cache objects which are not
serializable (in my current project).
Hope its possible to serialize compiled stylesheets in a
future version of saxon.
I'm not planning to change this.
Can you explain why it's not allowed (and who made the rule)? Many
projects store compiled stylesheets in application memory and it's
vital to performance to do so. I'm not aware of any problems that
this causes. The alternative, of compiling each stylesheet each time
it is used, is horrendous.