Integrated: 8373022: serviceability/sa/ClhsdbScanOops.java assumes no GC should occur

[Joel Sikström]

On Wed, 3 Dec 2025 14:59:10 GMT, Joel Sikström <jsikstro at openjdk.org> wrote:

> Hello,
> 
> If the initial heap size is set too low in serviceability/sa/ClhsdbScanOops.java, a GC migh run, which will interfere with the test and might cause it to fail. 
> 
> The test is scanning the oops in a region of the heap, and after a GC that region appears to be empty, so the output that the test expects is not present. Running the test with a larger explicit InitialHeapSize gives enough headroom to not run a GC.
> 
> Testing: 
> * serviceability/sa/ClhsdbScanOops.java originally failed when run with `-XX:InitialRAMPercentage=0` (which is the new default). We now explicitly set `-XX:InitialHeapSize=100M`. I've rerun the test 10 times with Serial and Parallel for each test and they all pass.

This pull request has now been integrated.

Changeset: 786833cd
Author:    Joel Sikström <jsikstro at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/786833cd1bf8eda1cef25da392a055f4eb371abf
Stats:     7 lines in 2 files changed: 3 ins; 3 del; 1 mod

8373022: serviceability/sa/ClhsdbScanOops.java assumes no GC should occur

Reviewed-by: cjplummer, stefank, ayang, tschatzl

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PR: https://git.openjdk.org/jdk/pull/28637