RFR: 8370578: SystemMapTest.java#normal fails intermittendly on macOS aarch64

[Chris Plummer]

On Tue, 28 Oct 2025 20:28:10 GMT, Simon Tooke <stooke at openjdk.org> wrote:

> This PR addresses [JDK-8370578](https://bugs.openjdk.org/browse/JDK-8370578)  
> 
> Under certain circumstances, OpenJDK on macOS maps the hsperf segment private instead of shared; one of those cases is hit during the tier1 tests, which test for that.  
> 
> This PR allows for shared or private mapping; the purpose of the intermittently failing test is to test System.map implementation, not JDK internals.

test/hotspot/jtreg/serviceability/dcmd/vm/SystemMapTestBase.java line 192:

> 190:             macOSbase + macow + space + someNumber + space + "/.*/bin/java",
> 191:             // we should see the hs-perf data file, and it should appear as shared as well as committed
> 192:             // in the jtreg tests this segment appears private

Since you have two sentences now,  you should capitalize and use ending periods.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28025#discussion_r2474075401