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-2.12.4-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/util/AnnotationUtil.java

package com.fasterxml.jackson.dataformat.xml.util;

import com.fasterxml.jackson.databind.AnnotationIntrospector;
import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
import com.fasterxml.jackson.dataformat.xml.XmlAnnotationIntrospector;
import com.fasterxml.jackson.module.jaxb.JaxbAnnotationIntrospector;

public class AnnotationUtil
{
    public static String findNamespaceAnnotation(AnnotationIntrospector ai,
            AnnotatedMember prop)
    {
        for (AnnotationIntrospector intr : ai.allIntrospectors()) {
            if (intr instanceof XmlAnnotationIntrospector) {
                String ns = ((XmlAnnotationIntrospector) intr).findNamespace(prop);
                if (ns != null) {
                    return ns;
                }
            } else  if (intr instanceof JaxbAnnotationIntrospector) {
                String ns = ((JaxbAnnotationIntrospector) intr).findNamespace(prop);
                if (ns != null) {
                    return ns;
                }
            }
        }
        return null;
    }

    public static Boolean findIsAttributeAnnotation(AnnotationIntrospector ai,
            AnnotatedMember prop)
    {
        for (AnnotationIntrospector intr : ai.allIntrospectors()) {
            if (intr instanceof XmlAnnotationIntrospector) {
                Boolean b = ((XmlAnnotationIntrospector) intr).isOutputAsAttribute(prop);
                if (b != null) {
                    return b;
                }
            } else  if (intr instanceof JaxbAnnotationIntrospector) {
                Boolean b = ((JaxbAnnotationIntrospector) intr).isOutputAsAttribute(prop);
                if (b != null) {
                    return b;
                }
           }
        }
        return null;
    }

    public static Boolean findIsTextAnnotation(AnnotationIntrospector ai,
            AnnotatedMember prop)
    {
        for (AnnotationIntrospector intr : ai.allIntrospectors()) {
            if (intr instanceof XmlAnnotationIntrospector) {
                Boolean b = ((XmlAnnotationIntrospector) intr).isOutputAsText(prop);
                if (b != null) {
                    return b;
                }
            } else  if (intr instanceof JaxbAnnotationIntrospector) {
                Boolean b = ((JaxbAnnotationIntrospector) intr).isOutputAsText(prop);
                if (b != null) {
                    return b;
                }
            }
        }
        return null;
    }

    public static Boolean findIsCDataAnnotation(AnnotationIntrospector ai,
                                               AnnotatedMember prop)
    {
        for (AnnotationIntrospector intr : ai.allIntrospectors()) {
            if (intr instanceof XmlAnnotationIntrospector) {
                Boolean b = ((XmlAnnotationIntrospector) intr).isOutputAsCData(prop);
                if (b != null) {
                    return b;
                }
            }
        }
        return null;
    }
}

⏎ com/fasterxml/jackson/dataformat/xml/util/AnnotationUtil.java

 

⇒ Download Jackson Dataformat Binary Packages

⇐ Jackson Dataformat Extensions

⇑ Downloading and Reviewing jackson-*.jar

⇑⇑ Jackson - Java JSON library