RFR: 8273217: Make ParHeapInspectTask _safepoint_check_never

[Coleen Phillimore]

On Wed, 1 Sep 2021 01:40:17 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> Make lock be declared as safepoint_check_never.
> Ran tier1-3 tests and test that uses this code: serviceability/dcmd/gc/ClassHistogramTest.java

Thanks David and Patricio!

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PR: https://git.openjdk.java.net/jdk/pull/5323