code: public void addAssocBeanExtras(ClassVisitor cv) {
  
      if (isLog(3)) {
        String msg = "... add fields";
        if (!hasBasicConstructor) {
          msg += ", basic constructor";
        }
        if (!hasMainConstructor) {
          msg += ", main constructor";
        }
        log(msg);
      }
  
      if (!hasBasicConstructor) {
        // add the assoc bean basic constructor
        new TypeQueryAssocBasicConstructor(this, cv, ASSOC_BEAN_BASIC_CONSTRUCTOR_DESC, ASSOC_BEAN_BASIC_SIG).visitCode();
      }
      if (!hasMainConstructor) {
        // add the assoc bean main constructor
        new TypeQueryAssocMainConstructor(this, cv, ASSOC_BEAN_MAIN_CONSTRUCTOR_DESC, ASSOC_BEAN_MAIN_SIG).visitCode();
      }
  
    }
docs: Add fields and constructors to assoc type query beans as necessary.