Jurisdiction — Foreign States — Exemption from — Conformity of Municipal Law with International Law — Acts of War by Germany in Belgium in regard to Neutral Property — Claim for Compensation against German Reich in Dutch Court — Judgment for the Plaintiff in Default of Appearance by the Reich — Claim by Dutch Government to have the Judgment Revoked — Lack of Jurisdiction of the Court — Disturbance of Friendly Relations by Municipal Decision — Insufficiency of Dutch Legislation Remedied by Enactment of New Supplementary Law.