Penerapan sanksi batal demi hukum terhadap perbuatan hukum yang bukan kehendak para pihak (studi kasus putusan pengadilan negeri Jakarta selatan Nomor 262/Pdt.G/2010/PN.Jkt.Sel) = The application of null and void sanctions towards the legal actions which is not based on the will of the parties (case studies of district court decision of south jakarta number: 262/Pdt.G/2010/PN. Jkt.Sel)