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Ability to use parametrized type as AttributeConverter type parameter
Description
Implementations of AttributeConverter<X<Z>, Y> fail in Hibernate 4.3.0.Final (with hibernate-jpa-2.1-api 1.0.0.Final).
The following declaration fails:
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import javax.persistence.AttributeConverter;
import javax.persistence.Converter;
@Converter
public class CategoryConverter implements AttributeConverter<Set<Category>, String>But this one works:
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import javax.persistence.AttributeConverter;
import javax.persistence.Converter;
@Converter
public class CategoryConverter implements AttributeConverter<Set, String>The exception is
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java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to java.lang.ClassAnd it occurs occurs in AttributeConverterDefinition.java:67:
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entityAttributeType = (Class) attributeConverterSignature.getActualTypeArguments()[0];where the real type is ParameterizedTypeImpl, probably because Set<Category> is more complex than just Set.
Environment
Java SE 7, Tomcat 7.0.47, MySQL 5.6
