Jackson is "the Java JSON library" or "the best JSON parser for Java". Or simply as "JSON for Java".

Jackson also allows you to parse or generate XML messages with the Jackson Dataformat XML Extension.

Jackson Dataformat XML Source Code files are provided in the source packge (jackson-dataformat-xml-2.14.0-sources.jar). You can download it at Jackson Maven Website.

You can also browse Jackson Dataformat XML Source Code below:

⏎ com/fasterxml/jackson/dataformat/xml/XmlNameProcessor.java

package com.fasterxml.jackson.dataformat.xml;

import java.io.Serializable;

/**
 * API of processors primarily used for dealing with XML names
 * containing invalid characters. Invalid characters in names can,
 * for instance, easily appear in map keys.
 * <p>
 * Processors should be set in the {@link XmlMapper#setXmlNameProcessor}
 * and/or the {@link XmlMapper.Builder#xmlNameProcessor} methods.
 * <p>
 * See {@link XmlNameProcessors} for default processors.
 *
 * @since 2.14
 */
public interface XmlNameProcessor extends Serializable {

    /**
     * Representation of an XML element or attribute name
     */
    class XmlName {
        public String namespace;
        public String localPart;

        public XmlName() { }
    }

    /**
     * Used during XML serialization.
     * <p>
     * This method should process the provided {@link XmlName} and
     * escape / encode invalid XML characters.
     *
     * @param name The name to encode
     */
    void encodeName(XmlName name);


    /**
     * Used during XML deserialization.
     * <p>
     * This method should process the provided {@link XmlName} and
     * revert the encoding done in the {@link #encodeName(XmlName)}
     * method.
     * <p>
     * Note: Depending on the use case, it is not always required (or
     * even possible) to reverse an encoding with 100% accuracy.
     *
     * @param name The name to encode
     */
    void decodeName(XmlName name);

}

⏎ com/fasterxml/jackson/dataformat/xml/XmlNameProcessor.java

Or download all of them as a single archive file:

File name: jackson-dataformat-xml-2.14.0-sources.jar
File size: 98015 bytes
Release date: 2022-11-05
Download 

⇒ Download Jackson Dataformat Binary Packages

⇐ Jackson Dataformat Extensions

⇑ Downloading and Reviewing jackson-*.jar

⇑⇑ Jackson - Java JSON library