Hello everyone,
I have created a Java equivalent of PiwikTracker.php and need testers. Please check out Java Tracking Client V1 - PiwikTracker.java · Issue #2172 · matomo-org/matomo · GitHub and grab http://dev.piwik.org/trac/attachment/ticket/2172/piwik.2.zip to test accessing the API directly from your Java code.
Looking forward to your feedback!
Cheers
exactt