https://support.atlassian.com/browse/BSP-2952
It looks like the GWT.clover.xxx are not executed.
build 06-May-2010 17:24:30 Build sequence for target(s) `clover.fullclean' is [clover.clean, clover.fullclean]
build 06-May-2010 17:24:30 Complete build sequence is [clover.clean, clover.fullclean, clover.save-history, GWT.clover.report, GWT.clover.json, checkstyle, common.checkstyle, buildonly, dist-dev, tools, apicheck-nobuild, apicheck, test, verify, common.all, build, doc, dist, -compile.emma.if.enabled, dev, GWT.with.clover, compile.emma.if.enabled, common.clean, GWT.clover.fullclean, common.build, GWT.clover.current, presubmit, all, GWT.clover.clean, GWT.clover.save-history, clover.snapshot, clover.json, clover.report, user, clover.log, common.compile.emma.if.enabled, ci, common.-compile.emma.if.enabled, GWT.clover.log, bikeshed, emma.merge, GWT.test, with.clover, jni, clean, clover.all, common.-create.emma.coverage.if.enabled, clover.xml, common.verify, -create.emma.coverage.if.enabled, buildtools, clover.current, samples, dist-bikeshed, soyc, GWT.clover.all, GWT.clover.xml, common.test, servlet, GWT.clover.snapshot, ]
However targets without GWT are executed.