Off-topic? How to extract database statements from JPA?

The assignment is to evaluate SQL code for an application that has been built with Java Springer Persistence API and, if appropriate, offer suggestions to improve database performance.

The problem is that I am not a Java guy. I can usually read code and determine what it is trying to do. But here, I am at a loss. Where does the JPA hide the SQL code? I do not really expect a definitive, explicit answer, but if anybody could point me to documentation or a working aid that lays out where the JPA stores the DDL and DML, I would be truly grateful.

Thanks in advance.

Gus