code: static ClassInfoList getAllStandardClasses(final Collection<ClassInfo> classes, final ScanSpec scanSpec) {
          return new ClassInfoList(ClassInfo.filterClassInfo(classes, scanSpec, /* strictWhitelist = */ true,
                  ClassType.STANDARD_CLASS), /* sortByName = */ true);
      }
docs: Get all standard classes found during the scan.
  
  @param classes
  the classes
  @param scanSpec
  the scan spec
  @return A list of all standard classes found during the scan, or the empty list if none.