RFR: 8334391: JDK build should exclude *-files directories for Java source [v2]

[Erik Joelsson]

On Wed, 7 May 2025 22:59:04 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> We should always exclude `doc-files` and `snippet-files` when compiling java code. To generalize this, exclude all `*-files` directories.
>> 
>> (The usage of EXCLUDES and EXCLUDE_FILES is a bit weird. In essence, EXCLUDE_FILES prepends a `%` wildchar match to the filenames given, which we use here, while EXCLUDES matches only strict directory names in the path. These should probably be clarified/redesigned for more intuitive exclusion.)
>
> Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Get rid of looped eval

Marked as reviewed by erikj (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24449#pullrequestreview-2825780015