XmlAdapter for String to XML

XMLAdapter.java

import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;

public class XmlAdapter {

	private final Class clazz;

	public XmlAdapter(final Class clazz) {
		this.clazz = clazz;
	}

	public String toXml(final Object o) {
		try (StringWriter sw = new StringWriter()) {
			final JAXBContext jbc = JAXBContext.newInstance(this.clazz);
			jbc.createMarshaller().marshal(o, sw);
			return sw.toString();
		} catch (final JAXBException | IOException e) {
			throw new IllegalStateException(e);
		}
	}

	public Document toDom(final Object o) {
		try {
			final Document d = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
			final JAXBContext jbc = JAXBContext.newInstance(this.clazz);
			jbc.createMarshaller().marshal(o, d);
			return d;
		} catch (final JAXBException | ParserConfigurationException e) {
			throw new IllegalStateException(e);
		}
	}

	public Object toObject(final String xml) {
		try (StringReader sr = new StringReader(xml)) {
			final JAXBContext jbc = JAXBContext.newInstance(this.clazz);
			return jbc.createUnmarshaller().unmarshal(sr);
		} catch (final JAXBException e) {
			throw new IllegalStateException(e);
		}
	}

}