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/cfg/EnumFeature.java

package com.fasterxml.jackson.databind.cfg;

/**
 * New Datatype-specific configuration options related to handling of
 * {@link java.lang.Enum} types.
 *
 * @since 2.14
 */
public enum EnumFeature implements DatatypeFeature
{
    BOGUS_FEATURE(false);

    private final static int FEATURE_INDEX = DatatypeFeatures.FEATURE_INDEX_ENUM;

    /**
     * Whether feature is enabled or disabled by default.
     */
    private final boolean _enabledByDefault;

    private final int _mask;

    private EnumFeature(boolean enabledByDefault) {
        _enabledByDefault = enabledByDefault;
        _mask = (1 << ordinal());
    }

    @Override
    public boolean enabledByDefault() { return _enabledByDefault; }
    @Override
    public boolean enabledIn(int flags) { return (flags & _mask) != 0; }
    @Override
    public int getMask() { return _mask; }

    @Override
    public int featureIndex() {
        return FEATURE_INDEX;
    }
}

⏎ com/fasterxml/jackson/databind/cfg/EnumFeature.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

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⇑⇑ Jackson - Java JSON library