public void _setMMFData(File file, FileChannel fileChannel,Cleaner cleaner) {
        this.file = file; this.fileChannel = fileChannel; this.cleaner = cleaner;
    }
public void _setMMFData(File file, FileChannel fileChannel,Cleaner cleaner) {
        this.file = file; this.fileChannel = fileChannel; this.cleaner = cleaner;
    }
public void _setMMFData ( File file , FileChannel fileChannel , Cleaner cleaner ) { this . file = file ; this . fileChannel = fileChannel ; this . cleaner = cleaner ; }
hack to update underlying file in slices handed out to app
hack to update underlying file in slices handed out to app