https://github.com/jhalterman/modelmapper/issues/111

ModelMapperTypeInfoLearningTest.java

package org.modelmapper.internal;

import de.troi.common.util.mapper.ModelMapperConfiguration;
import org.junit.Test;
import org.modelmapper.ModelMapper;

import java.util.Map;
import java.util.UUID;

import static org.junit.Assert.assertEquals;

public class ModelMapperTypeInfoLearningTest {

    @Test
    public void typeInfoReference() {
        //given:
        ModelMapper modelMapper = new ModelMapperConfiguration().modelMapper();
        TypeInfo typeInfo = new TypeInfoImpl(new UpdatePersonResource(), UpdatePersonResource.class, (InheritingConfiguration) modelMapper.getConfiguration());
        //when:
        Map<String, Accessor> accessors = typeInfo.getAccessors();
        //then:
        assertEquals(accessors.get("reference").getType(), UUID.class);
    }

    @Test
    public void typeInfoReference1() {
        //given:
        ModelMapper modelMapper = new ModelMapperConfiguration().modelMapper();
        TypeInfo typeInfo = new TypeInfoImpl(new UpdatePersonResource1(), UpdatePersonResource1.class, (InheritingConfiguration) modelMapper.getConfiguration());
        //when:
        Map<String, Accessor> accessors = typeInfo.getAccessors();
        //then:
        assertEquals(accessors.get("reference").getType(), UUID.class);
    }
}

/**
 * Adding the generics parameter T breaks the test on Java  (build 1.7.0_55-b13) but runs fine on Java 8.
 * @param <T>
 */
interface ReferenceableResource<T> {
    T getReference();
}

class UpdatePersonResource implements ReferenceableResource {
    private UUID reference;

    public UUID getReference() {
        return reference;
    }

    public void setReference(UUID reference) {
        this.reference = reference;
    }
}

interface ReferenceableResource1 {
    UUID getReference();
}
class UpdatePersonResource1 implements ReferenceableResource1 {
    private UUID reference;

    public UUID getReference() {
        return reference;
    }

    public void setReference(UUID reference) {
        this.reference = reference;
    }
}