netdfs.DfsInfo200 entry1 = new netdfs.DfsInfo200();
        entry1.dfs_name = null;
        arrayWithNulls.s[0] = entry1;

        netdfs.DfsInfo200 entry2 = new netdfs.DfsInfo200();
        entry2.dfs_name = "valid_share";
        arrayWithNulls.s[1] = entry2;

        // Replace the info.e field
        setDfsEnumArray(dfsRootEnum, arrayWithNulls);

        // Test getEntries handles nulls

    private static final Pattern VALID_USERNAME = Pattern.compile("^[a-zA-Z0-9._\\-@]+$");
    private static final Pattern VALID_DOMAIN = Pattern.compile("^[a-zA-Z0-9._\\-]+$");
    private static final Pattern VALID_SHARE = Pattern.compile("^[a-zA-Z0-9._\\-$]+$");
    private static final Pattern PATH_TRAVERSAL = Pattern.compile("\\.\\.[\\\\/]");
    private static final Pattern INVALID_PATH_CHARS = Pattern.compile("[\\x00-\\x1f\"*:<>?|]");