Files.walkFileTree(paytableHomePath, new SimpleFileVisitor<Path>(){
            @Override
            public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {

                Path parentPath = dir.getParent();

                URI parentURIToCheck = parentPath.toUri();

                boolean testContain = GameTreeItemsMap.containsKey(parentURIToCheck);

                return FileVisitResult.CONTINUE;
            }