Fix close() method with DirectMemory storage
Fix close() method with DirectMemory storage

ringoluo/mapdb,jankotek/mapdb,jankotek/MapDB,jankotek/MapDB,codeaudit/mapdb,ffjiao/mapdb,hangum/mapdb,pettermahlen/mapdb,cocosli/mapdb,mebigfatguy/mapdb,binarytemple/mapdb,olupas/MapDB,SleimanJneidi/mapdb,lamfire/mapdb,sumit784/mapdb,morfeo8marc/mapdb,jankotek/mapdb,olupas/MapDB,mebigfatguy/mapdb