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>
