Update TestTooManyEntries to run non-manual

[Alan Bateman]

On 26/01/2023 18:57, Eirik Bjørsnøs wrote:
> Hi,
>
> This PR updates the test TestTooManyEntries to not create gigabytes of
> ZIP files, allowing the test to run fast and non-manual:
>
> https://github.com/openjdk/jdk/pull/12231
>
> May I please get some help with filing a JBS for this PR?
The intention of the test was exercise a multi-GB CEN. So I think it 
would be great if it could be re-written as an automatic test but I 
think it should be a real ZIP file, make use of sparse files might help.

-Alan