In a wca4z-generated Java project, how are COBOL programs and copybooks typically organized into Java packages?

Think of it like working hands-on with IBM mainframe systems — the answer here is 'All programs are placed in a single default package with no subdirectory structure'. wca4z organizes generated Java into packages that reflect service boundaries defined in the Refactor phase, with shared data structures from copybooks placed in a common package accessible across serv. On real mainframe exams, this concept comes up repeatedly so make sure you have it locked in.