RFR: 8303866: Allow ZipInputStream.readEnd to parse small Zip64 ZIP files [v15]

[Eirik Bjørsnøs]

> ZipInputStream.readEnd currently assumes a Zip64 data descriptor if the number of compressed or uncompressed bytes read from the inflater is larger than the Zip64 magic value.
> 
> While the ZIP format  mandates that the data descriptor `SHOULD be stored in ZIP64 format (as 8 byte values) when a file's size exceeds 0xFFFFFFFF`, it also states that `ZIP64 format MAY be used regardless of the size of a file`. For such small entries, the above assumption does not hold.
> 
> This PR augments ZipInputStream.readEnd to also assume 8-byte sizes if the ZipEntry includes a Zip64 extra information field AND the 'compressed size' and 'uncompressed size' have the expected Zip64 "magic" value 0xFFFFFFFF. This brings ZipInputStream into alignment with the APPNOTE format spec:
> 
> 
> When extracting, if the zip64 extended information extra 
> field is present for the file the compressed and 
> uncompressed sizes will be 8 byte values.
> 
> 
> While small Zip64 files with 8-byte data descriptors are not commonly found in the wild, it is possible to create one using the Info-ZIP command line `-fd` flag:
> 
> `echo hello | zip -fd > hello.zip`
> 
> The PR also adds a test verifying that such a small Zip64 file can be parsed by ZipInputStream.

Eirik Bjørsnøs has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 228 commits:

 - Merge branch 'master' into data-descriptor
 - Update comment of expect64BitDataDescriptor to reflect relaxed validation
 - Dial down validation of the Zip64 extra field
 - 8321712: C2: "failed: Multiple uses of register" in C2_MacroAssembler::vminmax_fp
   
   Co-authored-by: Volodymyr Paprotski <vpaprotski at openjdk.org>
   Reviewed-by: kvn, thartmann, epeter, jbhateja
 - 8319128: sun/security/pkcs11 tests fail on OL 7.9 aarch64
   
   Reviewed-by: mbaesken
 - 8322971: KEM.getInstance() should check if a 3rd-party security provider is signed
   
   Reviewed-by: mullan, valeriep
 - 8320890: [AIX] Find a better way to mimic dl handle equality
   
   Reviewed-by: stuefe, mdoerr
 - 8323276: StressDirListings.java fails on AIX
   
   Reviewed-by: jpai, dfuchs
 - 8319793: C2 compilation fails with "Bad graph detected in build_loop_late" after JDK-8279888
   
   Reviewed-by: chagedorn, epeter
 - 8314515: java/util/concurrent/SynchronousQueue/Fairness.java failed with "Error: fair=false i=8 j=0"
   
   Reviewed-by: alanb
 - ... and 218 more: https://git.openjdk.org/jdk/compare/e10d1400...4af7f500

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Changes: https://git.openjdk.org/jdk/pull/12524/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12524&range=14
  Stats: 335 lines in 2 files changed: 331 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/12524.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/12524/head:pull/12524

PR: https://git.openjdk.org/jdk/pull/12524