RFR: 8346717: serviceability/dcmd/vm/SystemDumpMapTest.java failing on Windows with "Stack base not yet set for thread id" [v4]

[David Holmes]

On Wed, 8 Jan 2025 21:01:37 GMT, Simon Tooke <stooke at openjdk.org> wrote:

>> This test fixes an issue with incomplete Windows threads not yet having a stack.  A test for a null stack_base is added to guard against the potential null dereference.  An additional test using ZGC is added to the jtreg SystemMapTest.
>
> Simon Tooke has updated the pull request incrementally with one additional commit since the last revision:
> 
>   test SystemMap with and without ZGC

Marked as reviewed by dholmes (Reviewer).

test/hotspot/jtreg/serviceability/dcmd/vm/SystemMapTest.java line 39:

> 37:  *          java.management
> 38:  *          jdk.internal.jvmstat/sun.jvmstat.monitor
> 39:  * @run testng/othervm -XX:+UsePerfData -XX:-UseZGC SystemMapTest

Technically you don't need to disable ZGC as the requires clause means it is already not the selected GC

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PR Review: https://git.openjdk.org/jdk/pull/22870#pullrequestreview-2538658134
PR Review Comment: https://git.openjdk.org/jdk/pull/22870#discussion_r1908108908