Play Framework

fix(testrunner): route all tests through DB lane when app has no JPA entities

usesDatabase() classified tests as DB-touching only via play.db.* markers or
JPA Model subclasses. Apps with non-JPA persistence (Riak, Mongo, custom
stores) have an empty entityInternalNames set, so every test fell through to
the U: prefix and ran on the 16-permit parallel lane against shared
application storage — racing on @AfterAll removeAll() calls and cross-test
data corruption.

When entityInternalNames is empty and no app markers are supplied, default
to "DB-touching" (single-permit serial lane) so non-JPA apps don't have to
opt into safety. Hybrid apps can declare their own markers via the
testrunner.dbMarkers system property (comma-separated FQCNs or package
prefixes) to retain per-test parallelism.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>