RFR: 8362482: [TESTBUG] serviceability/HeapDump/UnmountedVThreadNativeMethodAtTop.java: System.gc() does not provide full GC

[Christoph Langer]

On Thu, 17 Jul 2025 09:58:34 GMT, Richard Reingruber <rrich at openjdk.org> wrote:

> Call WhiteBox.fullGC()  instead of System.gc() for a guaranteed full GC.
> It is assumed that one full GC is sufficient for these tests.
> 
> Testing was done with fastdebug and release builds on the main platforms and also on Linux/PPC64le and AIX.

Marked as reviewed by clanger (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/26363#pullrequestreview-3062656908