purport to exclude have exclusive jurisdiction by virtue of Article 24.
5. An agreement conferring jurisdiction which forms part of a contract shall be treated as an agreement independent of the other terms of the contract.
The validity of the agreement conferring jurisdiction cannot be contested solely on the ground that the contract is not valid.
Art. 26 1. Apart from jurisdiction derived from other provisions of this Regulation, a court of a Member State before which a defendant enters an appearance shall have jurisdiction. This rule shall not apply where appearance was entered to contest the jurisdiction, or where another court has exclusive jurisdiction by virtue of Article 24.
2. In matters referred to in Sections 3, 4 or 5 where the policyholder, the insured, a beneficiary of the insurance contract, the injured party, the consumer or the employee is the defendant, the court shall, before assuming jurisdiction under paragraph 1, ensure that the defendant is informed of his right to contest the jurisdiction of the court and of the consequences of entering or not entering an appearance.

SECTION 8. Examination as to jurisdiction and admissibility

Art. 27 Where a court of a Member State is seised of a claim which is principally concerned with a matter over which the courts of another Member State have exclusive jurisdiction by virtue of Article 24, it shall declare of its own motion that it has no jurisdiction.
Art. 28 1. Where a defendant domiciled in one Member State is sued in a court of another Member State and does not enter an appearance, the court shall declare of its own motion that it has no jurisdiction unless its jurisdiction is derived from the provisions of this Regulation.
2. The court shall stay the proceedings so long as it is not shown that the defendant has been able to receive the document instituting the proceedings or an equivalent document in sufficient time to enable him to arrange for his defence, or that all necessary steps have been taken to this end.
3. Article 19 of Regulation (EC) No 1393/2007 of the European Parliament and of the Council of 13 November 2007 on the service in the Member States of judicial and extrajudicial documents in civil or commercial matters (service of documents) shall apply instead of paragraph 2 of this Article if the document instituting the proceedings or an equivalent document had to be transmitted from one Member State to another pursuant to that Regulation.
4. Where Regulation (EC) No 1393/2007 is not applicable, Article 15 of the Hague Convention of 15 November 1965 on the Service Abroad of Judicial and Extrajudicial Documents in Civil or Commercial Matters shall apply if the document instituting the