Ddl-generation error

Hello, i'm having a very strange error during ddl-generation, i'm using Netbeans 5.5, Glassfish V2 and Mysql 5.0.26. Toplink bug?
JDO76609: Got SQLException executing statement "ALTER TABLE ana_ute DROP FOREIGN KEY UNQ_ana_ute_0": java.sql.SQLException: Error on rename of './lbdb_test/ana_ute' to './lbdb_test/#sql2-11af-1e' (errno: 152)

probably i found the problem...
Toplink generate this:
ALTER TABLE ana_ute DROP FOREIGN KEY UNQ_ana_ute_0;
but with Mysql the correct command is:
ALTER TABLE ana_ute DROP KEY UNQ_ana_ute_0;
This problem is only for the Unique Key.

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I have a skeleton project using JSF2, EJB3, Glassfish3, JPA/toplink, Helios. When I run the deployed project, I get this error:
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newBook.xhtml
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
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<h:body>
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               <h:inputTextarea value="#{bookController.book.description}" cols="20"
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               <h:outputLabel value="Number of pages : " />
               <h:inputText value="#{bookController.book.nbOfPage}" />
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               <h:selectBooleanCheckbox value="#{bookController.book.illustrations}" />
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package controllers;
import java.util.ArrayList;
import java.util.List;
import javax.ejb.EJB;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import ejb.BookEJB;
import entities.Book;
@ManagedBean
@RequestScoped
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package ejb;
import java.util.List;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.TypedQuery;
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import javax.persistence.Entity;
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import javax.persistence.GenerationType;
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<?xml version="1.0" encoding="UTF-8"?>
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Hi all,
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Thanks and regards, Garry
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-- at: 2012-05-02 16:00:12 CDT
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Hi Garry,
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