How to get Oracle Stored Procedure result set metadata in JPA/Hibernate?

I have few Oracle Stored Procedure returning SYS_REFCURSOR. The result set from each SP is different i.e, each stored procedure returns different number of fields and types. The Java application is using JPA/Hibernate to get the result using StoredProcedureQuery getResultList() API. This is returning an object array (Object[]). Is there any way to get the meta data for the resultset? I’m looking for something similar to JDBC ResultSetMetaData but for JPA2/Hibernate.