I'm looking for a good genetic programming library for JVM. (not a genetic algorithm but genetic programming) I tried JGAP (jgap.sourceforge.net) and Watchmaker (watchmaker.uncommons.org). Unfortunately, those tools have only experimental and immature support for genetic programming (they are mainly focused on genetic algorithms).
Perhaps do you know any better tool for genetic programming, for JVM (can be written in Java or any other compiled language for JVM)?
I'm not looking for a comprehensive list of GP tools, I'm rather looking for a good, popular tool (just like popular operating systems are Windows, Linux, and Mac, and popular Java IDEs are Eclipse, IDEA, and NetBeans).
It doesn't have to be a genetic programming library (GP), it can also be (and it would probably better) a gene expression programming library (GEP).
EDIT (after two months since the question): I analyzed most of the links You posted and which are available in Wiki and I must say that each of those libraries has at least one of the following problems:
no open-source, or open-source, but very restrictive (GPL);
no documentation (or a very poor one);
no built-in support for genetic programming or gene expression programming (or experimental one;
some are just too complex in use.
In this situation, I ended up in writing my own simple library for the project (using a gene expression programming approach, which makes it very very simple).