@Override
    protected <T> void mergeFrom(byte[] data, int offset, int length, T message,
            Schema<T> schema) throws IOException
    {
        XmlIOUtil.mergeFrom(data, offset, length, message, schema);
    }
Test xml ser/deser for runtime {@link Map} fields.

@author David Yu
@created Jan 22, 2011
protostuff-xml/src/test/java/io/protostuff/XmlRuntimeMapTest.java