Hi I have commited a fix for JamVM. http://icedtea.classpath.org/hg/icedtea6/rev/c7649e1d458f The new update contain this fix: http://git.berlios.de/cgi-bin/cgit.cgi/jamvm/commit/?id=5c1ee07b78ecf18b24493b1759e20a7e22570c19 Now JamVM pass all IcedRobot unittests! Ok to push to IcedTea6 1.10 release branch? Cheers Xerxes