Java 7 has been out for a while now, but I cannot find any good resources on the configuration of the garbage collectors, specifically the new G1 collector.

My questions:

  1. Is G1 the default collector in Java 7 and if not how do I activate G1?
  2. What optional settings does g1 have in Java7?
  3. Were there any changes made to other collectors like cms or the parallel collector in Java 7?
  4. Where can I find good documentation on garbage collection in Java 7?
java garbage-collection java-7 heap-memory g1gc
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