RFR: 8339280: jarsigner -verify performs cross-checking between CEN and LOC [v13]

[Sean Mullan]

On Fri, 21 Mar 2025 19:23:59 GMT, Hai-May Chao <hchao at openjdk.org> wrote:

>> The jarsigner -verify command currently performs verification by reading from JarFile to navigate the central directory (CEN) headers. It is now enhanced to include cross-validation of entries between JarFile (CEN-based) and JarInputStream (stream-based) representations of the JAR. It emits earnings when detecting discrepancies between a JAR file’s central directory and its local file entries.
>
> Hai-May Chao has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update test with more ZipEntry in the jar

src/jdk.jartool/share/classes/sun/security/tools/jarsigner/Main.java line 1158:

> 1156:                 if (cenEntry == null) {
> 1157:                     crossChkWarnings.add(String.format(rb.getString(
> 1158:                             "Entry.missing.in.JarFile.1"), entryName));

Would it be more precise to change this warning to "Entry %s is present when reading via JarInputStream but missing when reading via JarFile"?

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PR Review Comment: https://git.openjdk.org/jdk/pull/23532#discussion_r2012868024