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-2.12.4-sources.jar). You can download it at Jackson Maven Website.

You can also browse Jackson Annotations Source Code below:

⏎ com/fasterxml/jackson/databind/cfg/CoercionConfig.java

package com.fasterxml.jackson.databind.cfg;

import java.util.Arrays;

/**
 * @since 2.12
 */
public class CoercionConfig
    implements java.io.Serializable
{
    private static final long serialVersionUID = 1L;

    private final static int INPUT_SHAPE_COUNT = CoercionInputShape.values().length;

    protected Boolean _acceptBlankAsEmpty;

    /**
     * Mapping from {@link CoercionInputShape} into corresponding
     * {@link CoercionAction}.
     */
    protected final CoercionAction[] _coercionsByShape;

    public CoercionConfig() {
        _coercionsByShape = new CoercionAction[INPUT_SHAPE_COUNT];   
        _acceptBlankAsEmpty = false;
    }

    protected CoercionConfig(CoercionConfig src) {
        _acceptBlankAsEmpty = src._acceptBlankAsEmpty;
        _coercionsByShape = Arrays.copyOf(src._coercionsByShape,
                src._coercionsByShape.length);
    }

    public CoercionAction findAction(CoercionInputShape shape) {
        return _coercionsByShape[shape.ordinal()];
    }

    public Boolean getAcceptBlankAsEmpty() {
        return _acceptBlankAsEmpty;
    }
}

⏎ com/fasterxml/jackson/databind/cfg/CoercionConfig.java

 

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⇑⇑ Jackson - Java JSON library