RFR: 8303866: Allow ZipInputStream.readEnd to parse small Zip64 ZIP files [v3]

Wed Nov 8 13:28:00 UTC 2023

On Sat, 28 Oct 2023 17:34:35 GMT, Eirik Bjorsnos <duke at openjdk.org> wrote:

> We need to hold off this PR until #15650 has been integrated as it impacts some of the changes proposed here

Marking this PR ready for review, now that #15650 has been integrated.

A summary of updates after #15650:

- `ZipFile.isZip64ExtBlockSizeValid` cannot be reused from `ZipInputStream` because values from the CEN are not available in streaming mode. My understanding of ZIP64 fields in a LOC is that they should contain csize and/or size, since LOC Offset and Disk Start Number are CEN-only
- Converted the test to junit
- Fixed an incorrect check that a Zip64 block size does not exceed the size of the total extra field

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PR Comment: https://git.openjdk.org/jdk/pull/12524#issuecomment-1801887748