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From Henning Storhaug <henningstorh...@yahoo.no>
Subject Re: Standalone JPA startup problem / BUG?
Date Mon, 20 Oct 2008 12:05:04 GMT
Problem solved; other required libs in my project included gnujaxp.jar..


Henning Storhaug skrev:
> I'm trying to run JPA standalone , but got stuck with exception on 
> call to: "EntityManagerFactory factory = 
> Persistence.createEntityManagerFactory("blabla");"
> The exception reason is the call to 
> "parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaLanguage",  
> "http://www.w3.org/2001/XMLSchema");" somewhere in XMLMetaDataParser.
>
> OpenJPA seem to use an odd JAXP implementation; 
> "gnu.xml.aelfred2.JAXPFactory.JaxpParser". Is this causing the problem?
>
>
> Stacktrace:
> Exception in thread "main" javax.persistence.PersistenceException: 
> Provider error. Provider: 
> org.apache.openjpa.persistence.PersistenceProviderImpl
>    at javax.persistence.Persistence.createFactory(Persistence.java:175)
>    at 
> javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:111) 
>
>    at samplingcollector.client.JPATest.main(JPATest.java:55)
> Caused by: <openjpa-1.2.0-r422266:683325 nonfatal general error> 
> org.apache.openjpa.util.GeneralException: 
> org.xml.sax.SAXNotRecognizedException: 
> http://java.sun.com/xml/jaxp/properties/schemaLanguage
>    at 
> org.apache.openjpa.lib.meta.XMLMetaDataParser.parseNewResource(XMLMetaDataParser.java:379)

>
>    at 
> org.apache.openjpa.lib.meta.XMLMetaDataParser.parse(XMLMetaDataParser.java:318) 
>
>    at 
> org.apache.openjpa.lib.meta.XMLMetaDataParser.parse(XMLMetaDataParser.java:295) 
>
>    at 
> org.apache.openjpa.lib.meta.XMLMetaDataParser.parse(XMLMetaDataParser.java:268) 
>
>    at 
> org.apache.openjpa.persistence.PersistenceProductDerivation$ConfigurationParser.parse(PersistenceProductDerivation.java:509)

>
>    at 
> org.apache.openjpa.persistence.PersistenceProductDerivation.parseResources(PersistenceProductDerivation.java:359)

>
>    at 
> org.apache.openjpa.persistence.PersistenceProductDerivation.load(PersistenceProductDerivation.java:326)

>
>    at 
> org.apache.openjpa.persistence.PersistenceProductDerivation.load(PersistenceProductDerivation.java:161)

>
>    at 
> org.apache.openjpa.persistence.PersistenceProviderImpl.createEntityManagerFactory(PersistenceProviderImpl.java:77)

>
>    at 
> org.apache.openjpa.persistence.PersistenceProviderImpl.createEntityManagerFactory(PersistenceProviderImpl.java:109)

>
>    at 
> org.apache.openjpa.persistence.PersistenceProviderImpl.createEntityManagerFactory(PersistenceProviderImpl.java:53)

>
>    at javax.persistence.Persistence.createFactory(Persistence.java:171)
>    ... 2 more
>
> --------------
>
> My configuration is windows xp, eclipse 3.4.1, JDK 1.6.0_10. OpenJPA 
> 1.2.0
> And my persistence.xml follows
>
> <?xml version="1.0" encoding="UTF-8"?>
> <persistence xmlns="http://java.sun.com/xml/ns/persistence"
>    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>    version="1.0">
>    <persistence-unit name="blabla" transaction-type="RESOURCE_LOCAL">
>        <!--
>            The default provider can be OpenJPA, or some other product.
>            This element is optional if OpenJPA is the only JPA provider
>            in the current classloading environment, but can be specified
>            in cases where there are multiple JPA implementations 
> available.
>        -->
>        
> <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>

>
>
>        <!-- We must enumerate each entity in the persistence unit -->
>        <class>MyClass</class>
>
>        <properties>
>            <!--
>                We can configure the default OpenJPA properties here. They
>                happen to be commented out here since the provided 
> examples
>                all specify the values via System properties.
>            -->
>            <property name="openjpa.ConnectionURL"
>                value="jdbc:derby:openjpa-database;create=true"/>
>            <property name="openjpa.ConnectionDriverName"
>                value="org.apache.derby.jdbc.EmbeddedDriver"/>
>            <property name="openjpa.ConnectionUserName"
>                value="user"/>
>            <property name="openjpa.ConnectionPassword"
>                value="secret"/>
>        </properties>
>    </persistence-unit>
> </persistence>
>
>
>



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