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

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

You can also browse Jackson Core Source Code below:

⏎ com/fasterxml/jackson/core/JsonGenerationException.java

/* Jackson JSON-processor.
 *
 * Copyright (c) 2007- Tatu Saloranta, tatu.saloranta@iki.fi
 */

package com.fasterxml.jackson.core;

import com.fasterxml.jackson.core.exc.StreamWriteException;

/**
 * Exception type for exceptions during JSON writing, such as trying
 * to output  content in wrong context (non-matching end-array or end-object,
 * for example).
 */
public class JsonGenerationException
    extends StreamWriteException
{
    private final static long serialVersionUID = 123; // eclipse complains otherwise

    @Deprecated // since 2.7
    public JsonGenerationException(Throwable rootCause) {
        super(rootCause, null);
    }

    @Deprecated // since 2.7
    public JsonGenerationException(String msg) {
        super(msg, null);
    }

    @Deprecated // since 2.7
    public JsonGenerationException(String msg, Throwable rootCause) {
        super(msg, rootCause, null);
    }

    // @since 2.7
    public JsonGenerationException(Throwable rootCause, JsonGenerator g) {
        super(rootCause, g);
    }

    // @since 2.7
    public JsonGenerationException(String msg, JsonGenerator g) {
        super(msg, g);
        _processor = g;
    }
    
    // @since 2.7
    public JsonGenerationException(String msg, Throwable rootCause, JsonGenerator g) {
        super(msg, rootCause, g);
        _processor = g;
    }

    /**
     * Fluent method that may be used to assign originating {@link JsonGenerator},
     * to be accessed using {@link #getProcessor()}.
     *
     * @param g Generator to assign
     *
     * @return This exception instance (to allow call chaining)
     *
     * @since 2.7
     */
    @Override
    public JsonGenerationException withGenerator(JsonGenerator g) {
        _processor = g;
        return this;
    }

    // NOTE: overloaded in 2.13 just to retain binary compatibility with 2.12 (remove from 3.0)
    @Override
    public JsonGenerator getProcessor() { return _processor; }
}

⏎ com/fasterxml/jackson/core/JsonGenerationException.java

Or download all of them as a single archive file:

File name: jackson-core-2.14.0-sources.jar
File size: 497693 bytes
Release date: 2022-11-05
Download 

⇒ Download and Install Jackson Binary Package

⇐ What Is Jackson

⇑ Downloading and Reviewing jackson-*.jar

⇑⇑ Jackson - Java JSON library