Java G1 garbage collection in production

Question

Since Java 7 is going to use the new G1 garbage collection by default is Java going to be able to handle an order of magnitude larger heap without supposed \"devastating\" G

Answer 1

G1 GC is supposed to work better. But if setting -XX:MaxGCPauseMillis too aggressively, garbage will be collecting too slowly. And that's why full GC triggered in David Leppik's example.