Java 如何向JAXB中的文本元素添加属性？

如何使用JAXB生成以下XML片段

<sequence md5="1de2cf633901ff1f00785735c8ce7e70">MPTINSALRKVARVRLTSG</sequence>

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@sequence属性上的XmlValue

@XmlType(name = "SequenceType")
public class Sequence {

    private String md5;
    private String sequence;

    @XmlAttribute
    public String getMd5() {
        return md5;
    }

    @XmlValue
    public String getSequence() {
        return sequence;
    }

}

@XmlType(name = "SequenceType")
public class Sequence {

    private String md5;
    private String sequence;

    @XmlAttribute
    public String getMd5() {
        return md5;
    }

    @XmlValue
    public String getSequence() {
        return sequence;
    }

}