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https://issues.apache.org/jira/browse/OPENJPA-889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12702400#action_12702400
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Jeremias Maerki commented on OPENJPA-889:
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Exact same problem here (with OpenJPA 1.2.1). Any ideas anyone?
> OpenJPA enhancer in ant script
> ------------------------------
>
> Key: OPENJPA-889
> URL: https://issues.apache.org/jira/browse/OPENJPA-889
> Project: OpenJPA
> Issue Type: Question
> Components: kernel
> Affects Versions: 1.3.0
> Environment: Ubuntu 8.04, Java 6, Ant 1.7.0, Netbeans 6.5, OpenJPA
> 1.2.0/1.3.0-SNAPSHOT
> Reporter: Mejov Andrey
>
> Hi
> I use OpenJPA enhancer in ant script (for-jpa.xml), according manual:
> <?xml version="1.0" encoding="UTF-8"?>
> <project name="ebd-entity">
> <path id="jpa-cp">
> <fileset dir="/usr/java/java-common/Commons" includes="*.jar"/>
> <fileset dir="/usr/java/java-common/Serp" includes="*.jar"/>
> <fileset dir="/usr/java/java-common/OpenJPA" includes="*.jar"/>
> <fileset dir="/usr/java/java-common/JPA" includes="*.jar"/>
> <fileset dir="/usr/java/java-common/JTA" includes="*.jar"/>
> </path>
> <taskdef name="openjpac"
> classname="org.apache.openjpa.ant.PCEnhancerTask"
> classpathref="jpa-cp"/>
> <openjpac directory="./build/classes">
> <classpath refid="jpa-cp"/>
> <!-- <config propertiesFile="./src/META-INF/persistence.xml"/> -->
> <fileset dir="./src">
> <include name="**/entity/*.java"/>
> </fileset>
> </openjpac>
> </project>
> but get error:
> /home/andrew/work/sg-util-project/ebd-entity/for-jpa.xml:16:
> <openjpa-1.3.0-SNAPSHOT-r422266:739431 fatal user error>
> org.apache.openjpa.util.MetaDataException: MetaDataFactory could not be
> configured (conf.newMetaDataFactoryInstance() returned null). This might mean
> that no configuration properties were found. Ensure that you have a
> META-INF/persistence.xml file, that it is available in your classpath, or
> that the properties file you are using for configuration is available. If you
> are using Ant, please see the <properties> or <propertiesFile> attributes of
> the task's nested <config> element. This can also occur if your OpenJPA
> distribution jars are corrupt, or if your security policy is overly strict
> if uncomment <config .../>, i get exception:
> java.util.MissingResourceException:
> /home/andrew/work/sg-util-project/ebd-entity/src/META-INF/persistence.xml#null
> Also i used "META-INF/persistence.xml" and "persistence.xml" and tried to add
> "build/classes" to classpath
> Folder structure:
> build
> /classes
> /META-INF
> /<folder and classes>
> build.xml
> dist
> for-jpa.xml
> nbproject
> src
> /META-INF
> /<folder and java source>
> test
> It's a bug or i wrong understood documentation?
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