RFR: 8373022: Increase initial heap size for test which assumes no GC

[Chris Plummer]

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 the following tests a GC might run, which will interfere with the tests and migh cause them to fail. To solve this, we should run the tests with a bumped initial heap size so that the GC does not interfere.
>  
> Test originally failed when run with `-XX:InitialRAMPercentage=0`. We now explicitly set `-XX:InitialHeapSize=100M` and they now always pass.
> 
> Testing:
> * Rerun 10 times with Serial and Parallel for each test and they all pass

Most of the SA tests probably have this requirement. What is it that made these two tests be noticed? Why was a small initial heap size being used?

-------------

PR Comment: https://git.openjdk.org/jdk/pull/28637#issuecomment-3607685544