https://github.com/FasterXML/jackson-datatypes-collections: Add-on datatype-support module for Jackson (https://github.com/FasterXML/jackson) that handles eclipse-collections (https://www.eclipse.org/collections/) types (FasterXML)
  • Jonas Konrad
  • Tatu Saloranta 
package com.fasterxml.jackson.datatype.eclipsecollections.deser.map;

import com.fasterxml.jackson.databind.BeanProperty;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonMappingException;


Author:yawkat
/**
 * @author yawkat
 */
public interface KeyHandler<K extends KeyHandler<K>> {
    K createContextualKey(DeserializationContext ctxt, BeanProperty property) throws JsonMappingException;

    // TYPE key(DeserializationContext ctx, String key) throws IOException;
}