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

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

You can also browse Jackson Annotations Source Code below:

⏎ com/fasterxml/jackson/annotation/JsonAlias.java

package com.fasterxml.jackson.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Annotation that can be used to define one or more alternative names for
 * a property, accepted during deserialization as alternative to the official
 * name. Alias information is also exposed during POJO introspection, but has
 * no effect during serialization where primary name is always used.
 *<p>
 * Examples:
 *<pre>
 *public class Info {
 *  &#64;JsonAlias({ "n", "Name" })
 *  public String name;
 *}
 *</pre>
 *
 * @since 2.9
 */
@Target({ElementType.ANNOTATION_TYPE, // for combo-annotations
    ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER// for properties (field, setter, ctor param)
})
@Retention(RetentionPolicy.RUNTIME)
@JacksonAnnotation
public @interface JsonAlias
{
    /**
     * One or more secondary names to accept as aliases to the official name.
     *
     * @return Zero or more aliases to associate with property annotated
     */
    public String[] value() default { };
}

⏎ com/fasterxml/jackson/annotation/JsonAlias.java

Or download all of them as a single archive file:

File name: jackson-annotations-2.14.0-sources.jar
File size: 80402 bytes
Release date: 2022-11-05
Download 

⇒ Jackson Dataformat Extensions

⇐ Jackson Data Binding Source Code

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⇑⇑ Jackson - Java JSON library