@Nullable
  private static JvmMethod findMainMethodInClass(@NotNull JvmClass clazz) {
    JvmMethod[] candidates = clazz.findMethodsByName(MAIN);
    return find(candidates, JvmMainMethodUtil::hasMainMethodSignature);
  }
@Nullable
  private static JvmMethod findMainMethodInClass(@NotNull JvmClass clazz)