Just in case you have not seen the issue described in [1], the download of our 0.12 release is currently corrupted as the included SystemML.jar does not contain the antlr-runtime and wink-json libraries. Hence, without modifying the jar, SystemML fails with ClassNotFoundExceptions.
I agree with Felix that we should fix this ASAP, potentially just fixing the links. Furthermore, I'd like to understand why there is a difference between the artifacts in the maven repository (which contain these libraries) and our download page. Could anyone clarify this discrepancy, please? Regards, Matthias [1] https://issues.apache.org/jira/browse/SYSTEMML-1250