RFR: 8341625: Improve ZipFile validation of the END header [v2]

[Eirik Bjørsnøs]

On Mon, 7 Oct 2024 20:00:03 GMT, Lance Andersen <lancea at openjdk.org> wrote:

>> Eirik Bjørsnøs has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Remove trailing whitespace
>>  - Use a ZIP64 test vector which may be reproduced using InfoZIP
>
> Marked as reviewed by lancea (Reviewer).

@LanceAndersen 

I figured it would make sense to also reject "negative" values. These are not actually negative, just values larger than `Long.MAX_VALUE` can represent.

See the 11a275d for the conversion to JUnit 5 and 0f0801c which makes the test parameterized to verify that a bunch of bad entry count values are rejected.

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

PR Comment: https://git.openjdk.org/jdk/pull/21384#issuecomment-2399088510