258Thus, any national rules or practice which might impair the effectiveness of EU law by withholding from the national court having jurisdiction to apply such law the power to do everything necessary at the moment of its application to disregard a national provision or practice which might prevent EU rules from having full force and effect are incompatible with the requirements which are the very essence of EU law (see, to that effect, judgments of 22 June 2010, Melki and Abdeli, C‑188/10 and C‑189/10, EU:C:2010:363, paragraph 44 and the case-law cited; of 5 April 2016, PFE, C‑689/13, EU:C:2016:199, paragraph 41; and of 4 December 2018, Minister for Justice and Equality and Commissioner of An Garda Síochána, C‑378/17, EU:C:2018:979, paragraph 36).
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