Yep, just more recent versions, and it&#x27;s been fixed too.  But if you watch the bugs that keep popping up for G1 you see stuff like this fairly regularly.<p>Of course, that&#x27;s a totally unfair comparison: CMS has had a decade of bug squashing...I&#x27;m sure it had equally scary bugs when it was new.  But that&#x27;s the point. Don&#x27;t use new, shiny GC&#x27;s because they are still squishing bugs :)<p>(Sorry, preaching to the choir, I just get frustrated by everyone claiming G1 will solve all their problems without investigating potential downsides)