Joined Cases C-447/17 P and C-479/17 P: Judgment of the Court (First Chamber) of 5 September 2019 — European Union, represented by the Court of Justice of the European Union v Guardian Europe Sàrl and European Union, represented by the European Commission (C-447/17 P) and Guardian Europe Sàrl v European Union, represented by the Court of Justice of the European Union, and European Union, represented by the European Commission (C-479/17 P) (Appeals – Actions for damages – Second paragraph of Article 340 TFEU – Excessive length of the proceedings in a case before the General Court of the European Union – Compensation for the damage allegedly sustained by the applicant – Concept of a ‘single undertaking’ not applied – Material damage – Bank guarantee costs – Causal link – Loss of profit – Non-pecuniary damage – Liability of the European Union for damage caused by infringements of EU law arising from a decision of the General Court – No incurring of liability)