RFR: 8269293: ObjectMonitor thread id fields should be 64 bits.

[Aleksey Shipilev]

On Thu, 24 Jun 2021 13:20:07 GMT, David Holmes <dholmes at openjdk.org> wrote:

> Note you can build a 32-bit VM and run it on a 64-bit system.

...and GHA would run x86_32 tier1 for you. The patch is unlikely to cause trouble, but just look through GHA results.

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PR: https://git.openjdk.java.net/jdk/pull/4584