I believe I fixed the issues, can I push this?

[Roman Kennke]

I have a half-finished patch that would make a connection matrix during
marking, and maintain it using barriers.

(I also have the infrastructure to do partial marking... stitching this
together will probably give us what we want. Soon.)

Other than that, I am fine with you pushing it ;-)

Roman



> http://cr.openjdk.java.net/~chf/connections/webrev.02/