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.set;

import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
import com.fasterxml.jackson.datatype.eclipsecollections.deser.BaseCollectionDeserializer;
import org.eclipse.collections.api.set.sorted.MutableSortedSet;
import org.eclipse.collections.impl.factory.SortedSets;

public final class MutableSortedSetDeserializer {
    private MutableSortedSetDeserializer() {
    }

    public static final class Ref
            extends BaseCollectionDeserializer.Ref<MutableSortedSet<?>, MutableSortedSet<Object>> {
        public Ref(JavaType elementType, TypeDeserializer typeDeserializer, JsonDeserializer<?> deserializer) {
            super(MutableSortedSet.class, elementType, typeDeserializer, deserializer);
        }

        @Override
        protected MutableSortedSet<Object> createIntermediate() {
            return SortedSets.mutable.empty();
        }

        @Override
        protected MutableSortedSet<?> finish(MutableSortedSet<Object> objects) {
            return objects;
        }

        @Override
        protected Ref<?, ?> withResolved(
                TypeDeserializer typeDeserializerForValue,
                JsonDeserializer<?> valueDeserializer
        ) {
            return new MutableSortedSetDeserializer.Ref(_elementType, typeDeserializerForValue, valueDeserializer);
        }
    }
}