RFR: 8361451: Test vmTestbase/metaspace/stressHierarchy/stressHierarchy012/TestDescription.java fails with OutOfMemoryError: Metaspace

[David Holmes]

On Mon, 20 Oct 2025 20:53:16 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> This adds a catch clause for InvocationTargetException that can happen for OOM while invoking MethodHandles code.  Thanks to @iklam for diagnosis and fix.
> Tested with the test 100x.

test/hotspot/jtreg/vmTestbase/metaspace/stressHierarchy/common/PerformChecksHelper.java line 140:

> 138:             }
> 139:         } catch (InvocationTargetException ite) {
> 140:             if (ite.getCause() != null && ite.getCause().getMessage().trim().toLowerCase().contains("Metaspace")) {

Surely this can never be true as you converted to lowercase and are searching for uppercase 'M'. ??

And the `trim()` serves no purpose that I can see when you are using `contains`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27907#discussion_r2446522093