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PONo Persistence provider for EntityManager named ws-persist
 

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  1. PONo Persistence provider for EntityManager named ws-persist
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    <p>I'm building a JAX-RS web service (Jersey) and now I'm trying to start using JPA. I have selected eclipselink to manage this persistence. </p> <p>To start off, I'm writing some junit test cases until I figure out how everything will come together. </p> <p>In my persistence.xml (WEB-INF/persistence.xml) I have:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8" ?&gt; &lt;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" xmlns="http://java.sun.com/xml/ns/persistence"&gt; &lt;persistence-unit name="ws-persist" transaction-type="RESOURCE_LOCAL"&gt; &lt;class&gt;beans.Change&lt;/class&gt; &lt;properties&gt; &lt;property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" /&gt; &lt;property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3333/tomcat" /&gt; &lt;property name="javax.persistence.jdbc.user" value="tomcat" /&gt; &lt;property name="javax.persistence.jdbc.password" value="...." /&gt; &lt;property name="eclipselink.ddl-generation" value="create-tables" /&gt; &lt;property name="eclipselink.ddl-generation.output-mode" value="database" /&gt; &lt;/properties&gt; &lt;/persistence-unit&gt; </code></pre> <p></p> <p>In my test class I have.</p> <pre><code>public class PersistenceTests { private EntityManager em = null; @Before public void setUp() throws Exception { Properties propertiesMap = new Properties(); propertiesMap.put(PersistenceUnitProperties.DDL_GENERATION, PersistenceUnitProperties.DROP_AND_CREATE); EntityManagerFactory factory = Persistence.createEntityManagerFactory("ws-persist", propertiesMap); em = factory.createEntityManager(); } @After public void tearDown() throws Exception { } @Test public void testSetUp(){ Assert.assertNotNull("Entity manager was null", em); Assert.assertTrue("Entity manager wasn't connected", em.isOpen()); } } </code></pre> <p>I have eclipselink.jar, and two javax.persistence_*.jars under my WEB-INF/lib folder. I'm getting the exception metioned in the title, can someone please help me figure out how to fix this? </p> <p>Thanks.</p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USBlaskovicz
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. VO
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      1. PONo Persistence provider for EntityManager named ws-persist
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. PONo Persistence provider for EntityManager named ws-persist
      1. USprayagupd
      1. VTFavorite
    1. COseems like it cannot find the provider, ensure the eclipselink.jar is on your classpath correctly.
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      1. PONo Persistence provider for EntityManager named ws-persist
      1. USJames
    2. COWhen I look at my buildpath under "web app libraries", eclipselink.jar is listed.
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      1. PONo Persistence provider for EntityManager named ws-persist
      1. USBlaskovicz
 

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