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/JsonManagedReference.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 used to indicate that annotated property is part of
 * two-way linkage between fields; and that its role is "parent" (or "forward") link.
 * Value type (class) of property must have a single compatible property annotated with
 * {@link JsonBackReference}. Linkage is handled such that the property
 * annotated with this annotation is handled normally (serialized normally, no
 * special handling for deserialization); it is the matching back reference
 * that requires special handling
 *<p>
 * All references have logical name to allow handling multiple linkages; typical case
 * would be that where nodes have both parent/child and sibling linkages. If so,
 * pairs of references should be named differently.
 * It is an error for a class to have multiple managed references with same name,
 * even if types pointed are different.
 *<p>
 * Note: only methods and fields can be annotated with this annotation: constructor
 * arguments should NOT be annotated, as they can not be either managed or back
 * references.
 * 
 * @author tatu
 */
@Target({ElementType.ANNOTATION_TYPE, ElementType.FIELD, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@JacksonAnnotation
public @interface JsonManagedReference
{
    /**
     * Logical have for the reference property pair; used to link managed and
     * back references. Default name can be used if there is just single
     * reference pair (for example, node class that just has parent/child linkage,
     * consisting of one managed reference and matching back reference)
     */
    public String value() default "defaultReference";
}

⏎ com/fasterxml/jackson/annotation/JsonManagedReference.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