JVM as platform for dynamic languages?  Martin Fowler recently
blogged about how to choose between the emerging JRuby and
Groovy scripting languages on the JVM. He pretty much ignores
both Rhino, and Jython, which is strange since Jython is the
grand-daddy of dynamic languages on the JVM, and Rhino seems to
have the most internal support from Sun, and has been getting
some serious press in the blogosphere. And I think his failure
to address Jython, and Rhino reduces the value of the article.
But he does, finally, at the end of his article, he get around
to a quick mention of Jython in the context of asking a bigger
question:  Will either matter to Java? After all Jython’s been
around for a long time without making a huge impact on the JVM.
Tool support is frankly pathetic for any of these languages when
you compare it to what you have for Java at the moment.  This
question is skating right around the critical issue, without
ever touching it directly.  Why is there so little uptake for
dynamic languages on th