[8u] RFR 8273826: Correct Manifest file name and NPE checks

[Severin Gehwolf]

On Thu, 2021-11-04 at 19:28 -0400, Martin Balao wrote:
> Hi,
> 
> I'd like to request a review for the 8u backport of JDK-8273826 [1].
> 
> Webrev.00:
> 
>  *
> http://cr.openjdk.java.net/~mbalao/webrevs/8273826/8273826.webrev.8u.jdk.00/
> 
> The 11u patch does not apply cleanly because:
> 
>  * ManifestEntryVerifier.java
>   * 8078468 is not in 8u
>    * This affects the context only, not the actual code modified. I
> don't see it as a blocking dependency. Manually applied the change.
> 
>  * LowerCaseManifest.java
>   * JarUtils imports and lib path adjusted to 8u location
>   * Path.of -> Paths.get replacement
> 
> The new 'LowerCaseManifest.java' test passes. No tests regressions in
> jdk/sun/security/tools/jarsigner.

This looks good to me.

Thanks,
Severin