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

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

You can also browse Jackson Databind Source Code below:

⏎ com/fasterxml/jackson/databind/introspect/AnnotatedAndMetadata.java

package com.fasterxml.jackson.databind.introspect;

/**
 * Silly little "Pair" class needed for 2-element tuples (without
 * adding dependency to one of 3rd party packages that has one).
 *
 * @since 2.13
 */
public class AnnotatedAndMetadata<A extends Annotated, M extends Object>
{
    public final A annotated;
    public final M metadata;

    public AnnotatedAndMetadata(A ann, M md) {
        annotated = ann;
        metadata = md;
    }

    public static <A extends Annotated, M> AnnotatedAndMetadata<A, M> of(A ann, M md) {
        return new AnnotatedAndMetadata<>(ann, md);
    }
}

⏎ com/fasterxml/jackson/databind/introspect/AnnotatedAndMetadata.java

Or download all of them as a single archive file:

File name: jackson-databind-2.14.0-sources.jar
File size: 1187952 bytes
Release date: 2022-11-05
Download 

⇒ Jackson Annotations Source Code

⇐ Download and Install Jackson Binary Package

⇑ Downloading and Reviewing jackson-*.jar

⇑⇑ Jackson - Java JSON library