Ok, it's time to start biting off a big change: we need to make the
JRuby runtime be classloader-global (i.e. static).
There's many reasons for this:
* You won't have to pass a Ruby instance into object construction
* Serialization will work, since it will just be able to grab the
classloader-global Ruby instance when constructing
* All core classes will be able to start inline caching calls back to
Ruby (where they do almost *no* caching right now)
* Replacing arbitrary pieces of Java code with Ruby code will be *much* easier
And the list goes on.
Perhaps the most important person I'd like to see in this discussion
would be Yoko Harada, since it may be possible to hide all this behind
RedBridge and the 223/BSF engines. But I'd like to hear from others
interested in the above features/changes, or from anyone with concerns
about how this change might affect their code.
For the record, this will almost exclusively impact only users
embedding JRuby or calling into JRuby from non-Ruby code. Users
running plain-old-Ruby probably will never see any real impact.
- Charlie
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