docs: public JaversBuilder withPackagesToScan(String packagesToScan) {
          if (packagesToScan == null || packagesToScan.trim().isEmpty()) {
              return this;
          }
  
          long start = System.currentTimeMillis();
          logger.info("scanning package(s): {}", packagesToScan);
          List<Class<?>> scan = findClasses(TypeName.class, packagesToScan.replaceAll(" ","").split(","));
  		for (Class<?> c : scan) {
  			scanTypeName(c);
  		}
  		long delta = System.currentTimeMillis() - start;
          logger.info("  found {} ManagedClasse(s) with @TypeName in {} ms", scan.size(), delta);
  
  		return this;
      }