@Nullable
  public static PsiMethod findNearestMethod(String name, @Nullable PsiClass cls) {
    if (cls == null) return null;
    for (PsiMethod method : cls.findMethodsByName(name, false)) {
      if (method.getParameterList().isEmpty()) {
        return method.getModifierList().hasModifierProperty(PsiModifier.ABSTRACT) ? null : method;
      }
    }
    return findNearestMethod(name, cls.getSuperClass());
  }
@Nullable
  public static PsiMethod findNearestMethod(String name, @Nullable PsiClass cls)