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/JsonFilter.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 which logical filter is to be used
 * for filtering out properties of type (class) annotated;
 * association made by this annotation declaring ids of filters,
 * and  <code>com.fasterxml.jackson.databind.ObjectMapper</code> (or objects
 * it delegates to) providing matching filters by id.
 *<p>
 * Filters to use are usually of type
 * <code>com.fasterxml.jackson.databind.ser.PropertyFilter</code> and
 * are registered through <code>com.fasterxml.jackson.databind.ObjectMapper</code>
 *<p>
 * Since 2.3, this annotation can also be used on properties (fields, methods,
 * constructor parameters).
 */
@Target({ElementType.ANNOTATION_TYPE, ElementType.TYPE,
    ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER // new in 2.3
})
@Retention(RetentionPolicy.RUNTIME)
@com.fasterxml.jackson.annotation.JacksonAnnotation
public @interface JsonFilter
{
    /**
     * Id of filter to use; if empty String (""), no filter is to be used.
     */
    public String value();
}

⏎ com/fasterxml/jackson/annotation/JsonFilter.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

⇑ Downloading and Reviewing jackson-*.jar

⇑⇑ Jackson - Java JSON library