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From "Albert Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OPENJPA-2021) Report persistence.xml missing when trying to enhance openJPA entity from eclipse
Date Thu, 23 Jun 2011 14:31:47 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-2021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13053884#comment-13053884
] 

Albert Lee commented on OPENJPA-2021:
-------------------------------------

Wilson,

The exception showed the failure is caused by not resolving MetaDataFactory.  It is not complaining
about not finding the persistence.xml. 

You may want to step-into    MappingFactoryValue's 

    public MetaDataFactory instantiateMetaDataFactory(Configuration conf,
        PluginValue metaPlugin, String mapping, boolean fatal) {

method to figure out why no MetaDataFactory is found in this code path.

Albert Lee.

> Report persistence.xml missing when trying to enhance openJPA entity from eclipse
> ---------------------------------------------------------------------------------
>
>                 Key: OPENJPA-2021
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-2021
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: Enhance
>    Affects Versions: 2.1.0
>         Environment: Win 7, Eclipse 3.6, MySQL 5.5
>            Reporter: hangchen222
>              Labels: Enhance,, error, openjpa-2.1.0-r422266:1071316, user
>
> I try to enhance the entity in my project with OpenJPA, and get the result as followed.
> But in fact it DOES existed for when I deploy the project the OpenJPA can visit the persistence.xml
and read the JDBC connection.
> Please be free to contact if any more info required and thanks in advance.
> Wilson Chen
> Detailed followed------------------------------------------------
> enhance:
>         [echo] ${enhance.cp}
>     [openjpac] <openjpa-2.1.0-r422266:1071316 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.
>     [openjpac] 	at org.apache.openjpa.meta.MetaDataRepository.initializeMetaDataFactory(MetaDataRepository.java:1904)
>     [openjpac] 	at org.apache.openjpa.meta.MetaDataRepository.endConfiguration(MetaDataRepository.java:1885)
>     [openjpac] 	at org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:518)
>     [openjpac] 	at org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:443)
>     [openjpac] 	at org.apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java:104)
>     [openjpac] 	at org.apache.openjpa.conf.MetaDataRepositoryValue.instantiate(MetaDataRepositoryValue.java:68)
>     [openjpac] 	at org.apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83)
>     [openjpac] 	at org.apache.openjpa.conf.OpenJPAConfigurationImpl.newMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:949)
>     [openjpac] 	at org.apache.openjpa.ant.PCEnhancerTask.executeOn(PCEnhancerTask.java:88)
>     [openjpac] 	at org.apache.openjpa.lib.ant.AbstractTask.execute(AbstractTask.java:171)
>     [openjpac] 	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
>     [openjpac] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     [openjpac] 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>     [openjpac] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>     [openjpac] 	at java.lang.reflect.Method.invoke(Unknown Source)
>     [openjpac] 	at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
>     [openjpac] 	at org.apache.tools.ant.Task.perform(Task.java:348)
>     [openjpac] 	at org.apache.tools.ant.Target.execute(Target.java:357)
>     [openjpac] 	at org.apache.tools.ant.Target.performTasks(Target.java:385)
>     [openjpac] 	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
>     [openjpac] 	at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
>     [openjpac] 	at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
>     [openjpac] 	at org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
>     [openjpac] 	at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
>     [openjpac] 	at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:662)
>     [openjpac] 	at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:495)
>     [openjpac] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     [openjpac] 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>     [openjpac] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>     [openjpac] 	at java.lang.reflect.Method.invoke(Unknown Source)
>     [openjpac] 	at org.eclipse.ant.core.AntRunner.run(AntRunner.java:378)
>     [openjpac] 	at org.eclipse.ant.internal.launching.launchConfigurations.AntLaunchDelegate.runInSameVM(AntLaunchDelegate.java:321)
>     [openjpac] 	at org.eclipse.ant.internal.launching.launchConfigurations.AntLaunchDelegate.launch(AntLaunchDelegate.java:274)
>     [openjpac] 	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:853)
>     [openjpac] 	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:702)
>     [openjpac] 	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:695)
>     [openjpac] 	at org.eclipse.core.externaltools.internal.model.ExternalToolBuilder.launchBuild(ExternalToolBuilder.java:181)
>     [openjpac] 	at org.eclipse.core.externaltools.internal.model.ExternalToolBuilder.doBuildBasedOnScope(ExternalToolBuilder.java:169)
>     [openjpac] 	at org.eclipse.core.externaltools.internal.model.ExternalToolBuilder.build(ExternalToolBuilder.java:88)
>     [openjpac] 	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:629)
>     [openjpac] 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
>     [openjpac] 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:172)
>     [openjpac] 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:203)
>     [openjpac] 	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:255)
>     [openjpac] 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
>     [openjpac] 	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:258)
>     [openjpac] 	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:311)
>     [openjpac] 	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:343)
>     [openjpac] 	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144)
>     [openjpac] 	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:242)
>     [openjpac] 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
> BUILD FAILED
> ...\BpcApiTestWeb\src\enhance.xml:50: <openjpa-2.1.0-r422266:1071316 fatal user error>
org.apache.openjpa.util.MetaDataException: MetaDataFactory could not be configured (conf.newMetaDataFactoryInstance()
returned null). This might mean that no configuration properties were found. Ensure that you
have a META-INF/persistence.xml file, that it is available in your classpath, or that the
properties file you are using for configuration is available. If you are using Ant, please
see the <properties> or <propertiesFile> attributes of the task's nested <config>
element. This can also occur if your OpenJPA distribution jars are corrupt, or if your security
policy is overly strict.
> And that is the enhance file I used.
> <project name="jpa_enhance_builder">
> 	
> 	<target name="openjpa.libs.check" unless="openjpa.libs">
> 		<fail message="Please set -Dopenjpa.libs in your builder configuration!" />
> 	</target>
> 	<target name="build.dir.check" unless="build.dir">
> 		<fail message="Please set -Dbuild.dir in your builder configuration!" />
> 	</target>
> 		
> 	<target name="enhance" depends="openjpa.libs.check, build.dir.check">
> 		
> 		
>         <path id="enhance.cp">        
>         	<pathelement location="${basedir}${file.separator}${build.dir}"/>
> 	        <fileset dir="${basedir}${file.separator}${openjpa.libs}">
> 	            <include name="**/*.jar"/>
> 	        </fileset>
>         </path>
> 		<echo message="${enhance.cp}"/>
> 		<taskdef name="openjpac" classname="org.apache.openjpa.ant.PCEnhancerTask">
> 			<classpath refid="enhance.cp"/> 
> 		</taskdef>
> 		
> 		<openjpac>
> 			<!--
> 			<classpath refid="openjpa.path.id"/>
> 			-->
> 			<classpath>
> 				<fileset dir="D:\I031900\workspace\BpcApiTestWeb\lib\META-INF\persistence.xml"
/>
> 			</classpath>
> 		</openjpac>
> 	</target>
> </project>

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