This started showing up after upgrading from M4 to M5, so to Weld 1.1.0. I'm using weldx, and as per the conversation on IRC with Pete this may be the cause.

Exact message:

WELD-001504 Intercepted bean method [method] public final native pl.softwaremill.service.organization.OrganizationService.notifyAll() (intercepted by pl.softwaremill.cdiext.transaction.TransactionalInterceptor) cannot be declared final