webbeans-impl/src/test/resources/META-INF/persistence.xml

<?xml version="1.0" encoding="UTF-8" ?>
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<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_1_0.xsd"
             version="1.0">

    <!-- simply all annotated persistent entities will be part of this unit-->
    <persistence-unit name="openwebbeanstest">

        <!--    <class>org.apache.openwebbeans.test.entity.UserEntity</class>-->

        <exclude-unlisted-classes>true</exclude-unlisted-classes>
        
        <properties>
            <!-- internal logger, has no timestamp? -->
            <property name="openjpa.Log" value="DefaultLevel=WARN, Runtime=INFO, Tool=INFO, SQL=TRACE" />
            <property name="openjpa.Log" value="DefaultLevel=TRACE" />
            <!-- redirect to log4j -->
            <property name="openjpa.Log" value="log4j" />
            <property name="openjpa.jdbc.DBDictionary" value="hsql" />
            <property name="openjpa.ConnectionDriverName" value="org.hsqldb.jdbcDriver" />
            <property name="openjpa.ConnectionURL" value="jdbc:hsqldb:mem:test" />
            <property name="openjpa.ConnectionUserName" value="sa" />
            <property name="openjpa.ConnectionPassword" value="" />
        </properties>

    </persistence-unit>
</persistence>