RFR: 8377244: Update ModuleReaderTest to JUnit prior to making changes

[duke]

On Thu, 5 Feb 2026 14:39:51 GMT, David Beaumont <duke at openjdk.org> wrote:

> Updated legacy TestNG asserts to JUnit and added useful context to help debugging when assertions fail.

@david-beaumont 
Your change (at version c3706f04eb4ac6e99dc8d24717e83d56ebfb1533) is now ready to be sponsored by a Committer.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/29588#issuecomment-3854743208