RFR: 8283710: JVMTI: Use BitSet for object marking [v6]

[Roman Kennke]

On Fri, 8 Apr 2022 12:59:26 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> Here's an idea. Add an mtflag called mtBitMap and use that. There's plenty of bits in mt flags.

Naa, I don't think this is justified. It isn't used as widely or frequently to warrant its own flag.

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PR: https://git.openjdk.java.net/jdk/pull/7964