Resolving resource

ResolveResource.java

private String resolveResource(String requestedPath) {
    Path resolvedPath = FileSystems.getDefault().getPath("");
    Path other = FileSystems.getDefault().getPath(requestedPath);
    for (Path path : other) {
        if (!path.startsWith(".") && !path.startsWith("..")) {
            resolvedPath = resolvedPath.resolve(path);
        }
    }
    if (resolvedPath.startsWith("")) {
        resolvedPath = resolvedPath.resolve(INDEX_HTML);
    }
    return resolvedPath.toString();
}