openjpa-tools/openjpa-maven-plugin/src/it/modifyDatabase/src/main/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="TestUnit">

        <properties>
            <property name="openjpa.jdbc.DBDictionary" value="mysql" />
            <property name="openjpa.ConnectionDriverName" value="com.mysql.jdbc.Driver" />
            <property name="openjpa.ConnectionURL" value="jdbc:mysql://localhost/testdb" />
            <property name="openjpa.ConnectionUserName" value="root" />
            <property name="openjpa.ConnectionPassword" value="" />

        </properties>

    </persistence-unit>

</persistence>