Entity not enhanced problem

[LongkerDandy]

Hi

OpenJPA keep telling me:
This configuration disallows runtime optimization, but the following listed
types were not enhanced at build time or at class load time with a
javaagent:

But I'm already doing the enhancement during maven build.
I'm tried both maven-openjpa-plugin and maven-antrun-plugin like this:

           <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <version>1.6</version>
                <executions>
                    <execution>
                        <phase>process-classes</phase>
                        <configuration>
                            <tasks>
                                <taskdef name="openjpac"
classname="org.apache.openjpa.ant.PCEnhancerTask"

classpathref="maven.compile.classpath"/>
                                <openjpac>
                                    <classpath
refid="maven.compile.classpath"/>
                                </openjpac>
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

And the persistence xml:

<persistence xmlns="http://java.sun.com/xml/ns/persistence";
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd";
             version="2.0">

    <persistence-unit name="medialibraryUnit" transaction-type="JTA">
        <description>Persistence unit for Chii2 Media Library</description>

 <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
        <jta-data-source>osgi:service/javax.sql.DataSource/(
osgi.jndi.service.name=jdbc/medialibrarydb)
        </jta-data-source>
        <non-jta-data-source>osgi:service/javax.sql.DataSource/(
osgi.jndi.service.name=jdbc/medialibrarydbnojta)
        </non-jta-data-source>

        <!-- Mapping Classes -->
        <class>org.chii2.medialibrary.persistence.entity.MovieImpl</class>

 <class>org.chii2.medialibrary.persistence.entity.MovieFileImpl</class>

 <class>org.chii2.medialibrary.persistence.entity.MovieInfoImpl</class>

 <class>org.chii2.medialibrary.persistence.entity.MovieImageImpl</class>
        <exclude-unlisted-classes>true</exclude-unlisted-classes>

        <properties>
            <property name="openjpa.Log" value="DefaultLevel=WARN,
Runtime=INFO, Tool=INFO"/>
            <property name="openjpa.jdbc.SynchronizeMappings"
value="buildSchema(ForeignKeys=true)"/>
            <property name="openjpa.jdbc.DBDictionary" value="derby"/>
        </properties>

    </persistence-unit>
</persistence>


When I build with maven, I didn't see any error.
The database created by OpenJPA doesn't contain any table related to my
entity!
I don't know where else to looking at.
Is that possible this error caused by something else, not related to the
enhancement?

And clue would be very thankful.

Regards
LongkerDandy