Jackson Data Binding Source Code

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

  • Jackson Data Binding module allows you to converts JSON to and from POJO (Plain Old Java Object) using property accessor or using annotations.
  • 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:

    ✍: FYIcenter.com


    package com.fasterxml.jackson.databind.deser.std;
    import java.io.IOException;
    import com.fasterxml.jackson.core.*;
    import com.fasterxml.jackson.databind.*;
    import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
     * Bogus deserializer that will simply skip all content there is to map
     * and returns Java null reference.
     * @since 2.2
    public class NullifyingDeserializer
        extends StdDeserializer<Object>
        private static final long serialVersionUID = 1L;
        public final static NullifyingDeserializer instance = new NullifyingDeserializer();
        public NullifyingDeserializer() { super(Object.class); }
        /* Deserializer API
        @Override // since 2.9
        public Boolean supportsUpdate(DeserializationConfig config) {
            return Boolean.FALSE;
        public Object deserialize(JsonParser p, DeserializationContext ctxt) throws IOException
            // 29-Jan-2016, tatu: Simple skipping for all other tokens, but FIELD_NAME bit
            //    special unfortunately
            if (p.hasToken(JsonToken.FIELD_NAME)) {
                while (true) {
                    JsonToken t = p.nextToken();
                    if ((t == null) || (t == JsonToken.END_OBJECT)) {
            } else {
            return null;
        public Object deserializeWithType(JsonParser p, DeserializationContext ctxt,
                TypeDeserializer typeDeserializer) throws IOException
            // Not sure if we need to bother but:
            switch (p.currentTokenId()) {
            case JsonTokenId.ID_START_ARRAY:
            case JsonTokenId.ID_START_OBJECT:
            case JsonTokenId.ID_FIELD_NAME:
                return typeDeserializer.deserializeTypedFromAny(p, ctxt);
                return null;



    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


    Jackson Annotations Source Code

    Download and Install Jackson Binary Package

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    ⇑⇑ Jackson - Java JSON library

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