We currently expect certain files in the legal folder of the jdk image. This should be checked by a test. (recently a check for the bin and lib folders has been added by [JDK-8374471](https://bugs.openjdk.org/browse/JDK-8374471))
------------- Commit messages: - JDK-8375458 Changes: https://git.openjdk.org/jdk/pull/29272/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29272&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8375458 Stats: 42 lines in 1 file changed: 42 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/29272.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29272/head:pull/29272 PR: https://git.openjdk.org/jdk/pull/29272
