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/deser/std/StringDeserializer.java

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.annotation.JacksonStdImpl;
import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
import com.fasterxml.jackson.databind.type.LogicalType;

@JacksonStdImpl
public class StringDeserializer extends StdScalarDeserializer<String> // non-final since 2.9
{
    private static final long serialVersionUID = 1L;

    /**
     * @since 2.2
     */
    public final static StringDeserializer instance = new StringDeserializer();

    public StringDeserializer() { super(String.class); }

    @Override // since 2.12
    public LogicalType logicalType() {
        return LogicalType.Textual;
    }

    // since 2.6, slightly faster lookups for this very common type
    @Override
    public boolean isCachable() { return true; }

    @Override // since 2.9
    public Object getEmptyValue(DeserializationContext ctxt) throws JsonMappingException {
        return "";
    }

    @Override
    public String deserialize(JsonParser p, DeserializationContext ctxt) throws IOException
    {
        // The critical path: ensure we handle the common case first.
        if (p.hasToken(JsonToken.VALUE_STRING)) {
            return p.getText();
        }
        // [databind#381]
        if (p.hasToken(JsonToken.START_ARRAY)) {
            return _deserializeFromArray(p, ctxt);
        }
        return _parseString(p, ctxt, this);
    }

    // Since we can never have type info ("natural type"; String, Boolean, Integer, Double):
    // (is it an error to even call this version?)
    @Override
    public String deserializeWithType(JsonParser p, DeserializationContext ctxt,
            TypeDeserializer typeDeserializer) throws IOException {
        return deserialize(p, ctxt);
    }
}

⏎ com/fasterxml/jackson/databind/deser/std/StringDeserializer.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

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⇑⇑ Jackson - Java JSON library