User-agent:
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.17) Gecko/20110424 Thunderbird/3.1.10
the build tries to re-bootstrap (building with ecj) when building zerovm;
instead it should use the just built hotspot vm for the zerovm build. Can't see
at a first glance why it's using the two-stage build. Used to work on the
buildds before.