}
        final int mod = inData.length % 3;
        final int num = inData.length / 3;
        char[] outData = null;
        if (mod != 0) {
            outData = new char[(num + 1) * 4];
        } else {
            outData = new char[num * 4];
        }
        for (int i = 0; i < num; i++) {
            encode(inData, i * 3, outData, i * 4);
        }
        if (mod == 1) {

        final ModificationItem mod = new ModificationItem(DirContext.ADD_ATTRIBUTE, attr);
        modifyList.add(mod);
    }

    protected void modifyReplaceEntry(final List<ModificationItem> modifyList, final String name, final String value) {
        final Attribute attr = new BasicAttribute(name, value);
        final ModificationItem mod = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, attr);