<Configure id="wac" class="org.eclipse.jetty.webapp.WebAppContext">
    <New id="DSTest" class="org.eclipse.jetty.plus.jndi.Resource">
        <Arg>jdbc/myds</Arg>
        <Arg>
            <New class="com.zaxxer.hikari.HikariDataSource">
                <Arg>
                    <New class="com.zaxxer.hikari.HikariConfig">
                        <Set type="int" name="maximumPoolSize">1</Set>
                        <Set name="dataSourceClassName">
                            org.h2.jdbcx.JdbcDataSource-
                        </Set>
                        <Call name="addDataSourceProperty">
                            <Arg>url</Arg>
                            <Arg>jdbc:h2:mem:test_mem</Arg>
                        </Call>
                    </New>
                </Arg>
            </New>
        </Arg>
    </New>
</Configure>

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
 http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
  <persistence-unit name="MyJPAJAXRS" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
    <non-jta-data-source>jdbc/myds</non-jta-data-source>
    <class>net.b.Configuration</class>
    <class>net.b.Form</class>
    <class>net.b.FormValue</class>
    <class>net.b.Translation</class>
    <properties>
      <property name="javax.persistence.schema-generation.database.action"
                value="drop-and-create"/>
      <property name="javax.persistence.sql-load-script-source" value="META-INF/seed.sql"/>
    </properties>
  </persistence-unit>
</persistence>


<!--<property name="javax.persistence.jdbc.driver" value="org.h2.Driver"/>-->
<!--<property name="javax.persistence.jdbc.url" value="jdbc:h2:mem:test_mem"/>-->
<!--<property name="javax.persistence.schema-generation.create-source"-->
<!--value="metadata-then-script"/>-->

TypedQuery<String> query = em.createQuery(
                    "SELECT t.value FROM Translation t WHERE t.key = :key", String.class);
 query.setParameter("key", key);
 result = query.getSingleResult();