Sorry that last article has really gotten to me. I really do not want to do down people's efforts on these Perl to Java projects because I can see that there has been a lot of time spent on them. It is just that this article is recommending me to use a language which to be quite honest is not a good fit for Java. A lot of these libraries seem to have been conceived about 3-4 years ago when there was a lack of an actively developed scripting language (well there was Jython but that was not being actively developed by then). But now we've got:
Jython (being developed again)
Groovy (which really is scriptable Java with lots of sugar)
I look at the list of libraries and really there's something each of these languages which can do a lot better not to mention running in the JVM. In a way the author is right these are 10 modules a Java programmer should know about if only to remind themselves that there has got to be a better way now.