What minimum test coverage standard is typically recommended for wca4z-generated Java modules before production promotion?

Think of it like working hands-on with IBM mainframe systems — the answer here is 'Coverage sufficient to validate all business-critical paths identified during the Discover phase, typically targeting 80 percent or higher branch coverage'. IBM recommends targeting meaningful coverage of all business-critical paths, typically 80 percent or higher branch coverage, to ensure the transformation preserved the full range of functional behavio. On real mainframe exams, this concept comes up repeatedly so make sure you have it locked in.