https://github.com/FasterXML/jackson-dataformat-xml: Data format extension for Jackson (http://jackson.codehaus.org) to offer alternative support for serializing POJOs as XML and deserializing XML as pojos. Support implemented on top of Stax API (javax.xml.stream), by implementing core Jackson Streaming API types like JsonGenerator, JsonParser and JsonFactory. Some data-binding types overridden as well (ObjectMapper sub-classed as XmlMapper). (FasterXML)
  • Tatu Saloranta
  • Christopher Currie
  • Paul Brown 
package com.fasterxml.jackson.dataformat.xml.annotation;

import java.lang.annotation.*;


Interface that is loosely similar to XmlValue in that it can be used on one (and only one!) property of a POJO. It will result in value of the property be serialized without element wrapper, as long as there are no element-wrapped other properties (attribute-valued properties are acceptable). It is also similar to core Jackson JsonValue annotation; but
has to be separate as JsonValue does not allow any other
properties.

/**
 * Interface that is loosely similar to {@link javax.xml.bind.annotation.XmlValue}
 * in that it can be used on one (and only one!) property of a POJO.
 * It will result in value of the property be serialized without element wrapper,
 * as long as there are no element-wrapped other properties (attribute-valued
 * properties are acceptable).
 * It is also similar to core Jackson <code>JsonValue</code> annotation; but
 * has to be separate as <code>JsonValue</code> does not allow any other
 * properties.
 */
@Target({ElementType.FIELD, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface JacksonXmlText
{
    
Whether serialization of the property should always be done as basic
XML text or not; if true, will be, if false, not.

/**
     * Whether serialization of the property should always be done as basic
     * XML text or not; if true, will be, if false, not.
     */
    public boolean value() default true;
}