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From "Willis Blackburn (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-1804) NPE in MappingInfo.java line 1514
Date Sat, 18 Sep 2010 20:10:33 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12911079#action_12911079
] 

Willis Blackburn commented on OPENJPA-1804:
-------------------------------------------

Stack trace:

Internal error: Errors encountered while resolving metadata.  See nested exceptions for details.
<openjpa-2.0.1-r422266:989424 fatal user error> org.apache.openjpa.persistence.ArgumentException:
Errors encountered while resolving metadata.  See nested exceptions for details.
	at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:642)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaDataInternal(MetaDataRepository.java:385)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:358)
	at org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:256)
	at org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:227)
	at org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:195)
	at org.apache.openjpa.enhance.ManagedClassSubclasser.prepareUnenhancedClasses(ManagedClassSubclasser.java:134)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.loadPersistentTypes(AbstractBrokerFactory.java:317)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.initializeBroker(AbstractBrokerFactory.java:241)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:215)
	at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:227)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:154)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:60)
	at com.signetworks.signs.util.db.Database$.createEntityManager(Database.scala:75)
	at com.signetworks.signs.util.db.Database$.withEntityManager(Database.scala:72)
	at com.signetworks.signs.util.db.Database$.unique(Database.scala:40)
	at com.signetworks.v3.servlet.V3Servlet.dispatchRequestInSession(V3Servlet.scala:63)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3$$anonfun$apply$1.apply(RequestDispatcher.scala:32)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3$$anonfun$apply$1.apply(RequestDispatcher.scala:32)
	at com.signetworks.dance.http.SynchronizedSessionBinder$$anonfun$bindSession$1.apply(SynchronizedSessionBinder.scala:21)
	at com.signetworks.dance.http.SynchronizedSessionBinder$$anonfun$bindSession$1.apply(SynchronizedSessionBinder.scala:21)
	at com.signetworks.dance.util.ThreadBoundValue.withValue(ThreadBoundValue.scala:38)
	at com.signetworks.dance.http.SynchronizedSessionBinder$class.bindSession(SynchronizedSessionBinder.scala:21)
	at com.signetworks.v3.servlet.V3Servlet.bindSession(V3Servlet.scala:31)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3.apply(RequestDispatcher.scala:31)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3.apply(RequestDispatcher.scala:31)
	at scala.Option.getOrElse(Option.scala:59)
	at com.signetworks.dance.http.RequestDispatcher$class.dispatchRequest(RequestDispatcher.scala:30)
	at com.signetworks.v3.servlet.V3Servlet.dispatchRequest(V3Servlet.scala:31)
	at com.signetworks.dance.http.RequestDispatcher$class.handleRequest(RequestDispatcher.scala:22)
	at com.signetworks.v3.servlet.V3Servlet.handleRequest(V3Servlet.scala:31)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1$$anonfun$apply$mcV$sp$1.apply(DanceServlet.scala:47)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1$$anonfun$apply$mcV$sp$1.apply(DanceServlet.scala:46)
	at com.signetworks.dance.http.DanceServlet$$anonfun$bindRequest$1.apply$mcV$sp(DanceServlet.scala:63)
	at com.signetworks.dance.http.DanceServlet$$anonfun$bindRequest$1.apply(DanceServlet.scala:63)
	at com.signetworks.dance.http.DanceServlet$$anonfun$bindRequest$1.apply(DanceServlet.scala:63)
	at com.signetworks.dance.util.ThreadBoundValue.withValue(ThreadBoundValue.scala:38)
	at com.signetworks.dance.http.DanceServlet.bindRequest(DanceServlet.scala:63)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1.apply$mcV$sp(DanceServlet.scala:45)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1.apply(DanceServlet.scala:45)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1.apply(DanceServlet.scala:45)
	at com.signetworks.dance.util.ThreadBoundValue.withValue(ThreadBoundValue.scala:38)
	at com.signetworks.dance.http.DanceServlet.service(DanceServlet.scala:42)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
	at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
	at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
	at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:332)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:233)
	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
	at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
	at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
	at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
	at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
	at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
	at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
	at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
	at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
	at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
	at java.lang.Thread.run(Thread.java:637)
Caused by: <openjpa-2.0.1-r422266:989424 nonfatal user error> org.apache.openjpa.persistence.ArgumentException:
No metadata was found for type "class java.lang.Object". The class is not enhanced.
	at org.apache.openjpa.meta.MetaDataRepository.getMetaDataInternal(MetaDataRepository.java:377)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:358)
	at org.apache.openjpa.meta.ClassMetaData.resolveMeta(ClassMetaData.java:1821)
	at org.apache.openjpa.meta.ClassMetaData.resolve(ClassMetaData.java:1786)
	at org.apache.openjpa.meta.ValueMetaDataImpl.resolve(ValueMetaDataImpl.java:435)
	at org.apache.openjpa.jdbc.meta.ValueMappingImpl.resolve(ValueMappingImpl.java:494)
	at org.apache.openjpa.meta.FieldMetaData.resolve(FieldMetaData.java:1732)
	at org.apache.openjpa.jdbc.meta.FieldMapping.resolve(FieldMapping.java:458)
	at org.apache.openjpa.meta.ClassMetaData.resolveMeta(ClassMetaData.java:1852)
	at org.apache.openjpa.meta.ClassMetaData.resolve(ClassMetaData.java:1786)
	at org.apache.openjpa.meta.MetaDataRepository.processBuffer(MetaDataRepository.java:790)
	at org.apache.openjpa.meta.MetaDataRepository.resolveMeta(MetaDataRepository.java:693)
	at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:617)
	... 68 more
NestedThrowables:
<openjpa-2.0.1-r422266:989424 fatal user error> org.apache.openjpa.persistence.ArgumentException:
Unable to resolve type "com.signetworks.signs.model.addressbook.AddressBook" due to previous
errors resolving related type "com.signetworks.signs.model.security.Organization".
	at org.apache.openjpa.meta.MetaDataRepository.processBuffer(MetaDataRepository.java:804)
	at org.apache.openjpa.meta.MetaDataRepository.resolveMeta(MetaDataRepository.java:693)
	at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:617)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaDataInternal(MetaDataRepository.java:385)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:358)
	at org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:256)
	at org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:227)
	at org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:195)
	at org.apache.openjpa.enhance.ManagedClassSubclasser.prepareUnenhancedClasses(ManagedClassSubclasser.java:134)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.loadPersistentTypes(AbstractBrokerFactory.java:317)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.initializeBroker(AbstractBrokerFactory.java:241)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:215)
	at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:227)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:154)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:60)
	at com.signetworks.signs.util.db.Database$.createEntityManager(Database.scala:75)
	at com.signetworks.signs.util.db.Database$.withEntityManager(Database.scala:72)
	at com.signetworks.signs.util.db.Database$.unique(Database.scala:40)
	at com.signetworks.v3.servlet.V3Servlet.dispatchRequestInSession(V3Servlet.scala:63)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3$$anonfun$apply$1.apply(RequestDispatcher.scala:32)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3$$anonfun$apply$1.apply(RequestDispatcher.scala:32)
	at com.signetworks.dance.http.SynchronizedSessionBinder$$anonfun$bindSession$1.apply(SynchronizedSessionBinder.scala:21)
	at com.signetworks.dance.http.SynchronizedSessionBinder$$anonfun$bindSession$1.apply(SynchronizedSessionBinder.scala:21)
	at com.signetworks.dance.util.ThreadBoundValue.withValue(ThreadBoundValue.scala:38)
	at com.signetworks.dance.http.SynchronizedSessionBinder$class.bindSession(SynchronizedSessionBinder.scala:21)
	at com.signetworks.v3.servlet.V3Servlet.bindSession(V3Servlet.scala:31)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3.apply(RequestDispatcher.scala:31)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3.apply(RequestDispatcher.scala:31)
	at scala.Option.getOrElse(Option.scala:59)
	at com.signetworks.dance.http.RequestDispatcher$class.dispatchRequest(RequestDispatcher.scala:30)
	at com.signetworks.v3.servlet.V3Servlet.dispatchRequest(V3Servlet.scala:31)
	at com.signetworks.dance.http.RequestDispatcher$class.handleRequest(RequestDispatcher.scala:22)
	at com.signetworks.v3.servlet.V3Servlet.handleRequest(V3Servlet.scala:31)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1$$anonfun$apply$mcV$sp$1.apply(DanceServlet.scala:47)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1$$anonfun$apply$mcV$sp$1.apply(DanceServlet.scala:46)
	at com.signetworks.dance.http.DanceServlet$$anonfun$bindRequest$1.apply$mcV$sp(DanceServlet.scala:63)
	at com.signetworks.dance.http.DanceServlet$$anonfun$bindRequest$1.apply(DanceServlet.scala:63)
	at com.signetworks.dance.http.DanceServlet$$anonfun$bindRequest$1.apply(DanceServlet.scala:63)
	at com.signetworks.dance.util.ThreadBoundValue.withValue(ThreadBoundValue.scala:38)
	at com.signetworks.dance.http.DanceServlet.bindRequest(DanceServlet.scala:63)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1.apply$mcV$sp(DanceServlet.scala:45)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1.apply(DanceServlet.scala:45)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1.apply(DanceServlet.scala:45)
	at com.signetworks.dance.util.ThreadBoundValue.withValue(ThreadBoundValue.scala:38)
	at com.signetworks.dance.http.DanceServlet.service(DanceServlet.scala:42)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
	at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
	at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
	at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:332)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:233)
	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
	at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
	at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
	at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
	at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
	at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
	at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
	at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
	at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
	at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
	at java.lang.Thread.run(Thread.java:637)
java.lang.NullPointerException
	at org.apache.openjpa.jdbc.meta.MappingInfo.mergeJoinColumn(MappingInfo.java:1514)
	at org.apache.openjpa.jdbc.meta.MappingInfo.createJoins(MappingInfo.java:1322)
	at org.apache.openjpa.jdbc.meta.MappingInfo.createForeignKey(MappingInfo.java:1084)
	at org.apache.openjpa.jdbc.meta.ValueMappingInfo.getTypeJoin(ValueMappingInfo.java:115)
	at org.apache.openjpa.jdbc.meta.ValueMappingInfo.getTypeJoin(ValueMappingInfo.java:92)
	at org.apache.openjpa.jdbc.meta.strats.RelationFieldStrategy.map(RelationFieldStrategy.java:167)
	at org.apache.openjpa.jdbc.meta.FieldMapping.setStrategy(FieldMapping.java:146)
	at org.apache.openjpa.jdbc.meta.RuntimeStrategyInstaller.installStrategy(RuntimeStrategyInstaller.java:82)
	at org.apache.openjpa.jdbc.meta.FieldMapping.resolveMapping(FieldMapping.java:496)
	at org.apache.openjpa.jdbc.meta.FieldMapping.resolve(FieldMapping.java:461)
	at org.apache.openjpa.jdbc.meta.ClassMapping.resolveMapping(ClassMapping.java:853)
	at org.apache.openjpa.meta.ClassMetaData.resolve(ClassMetaData.java:1791)
	at org.apache.openjpa.meta.MetaDataRepository.processBuffer(MetaDataRepository.java:790)
	at org.apache.openjpa.meta.MetaDataRepository.resolveMapping(MetaDataRepository.java:751)
	at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:631)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaDataInternal(MetaDataRepository.java:385)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:358)
	at org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:256)
	at org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:227)
	at org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:195)
	at org.apache.openjpa.enhance.ManagedClassSubclasser.prepareUnenhancedClasses(ManagedClassSubclasser.java:134)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.loadPersistentTypes(AbstractBrokerFactory.java:317)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.initializeBroker(AbstractBrokerFactory.java:241)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:215)
	at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:227)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:154)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:60)
	at com.signetworks.signs.util.db.Database$.createEntityManager(Database.scala:75)
	at com.signetworks.signs.util.db.Database$.withEntityManager(Database.scala:72)
	at com.signetworks.signs.util.db.Database$.unique(Database.scala:40)
	at com.signetworks.v3.servlet.V3Servlet.dispatchRequestInSession(V3Servlet.scala:63)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3$$anonfun$apply$1.apply(RequestDispatcher.scala:32)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3$$anonfun$apply$1.apply(RequestDispatcher.scala:32)
	at com.signetworks.dance.http.SynchronizedSessionBinder$$anonfun$bindSession$1.apply(SynchronizedSessionBinder.scala:21)
	at com.signetworks.dance.http.SynchronizedSessionBinder$$anonfun$bindSession$1.apply(SynchronizedSessionBinder.scala:21)
	at com.signetworks.dance.util.ThreadBoundValue.withValue(ThreadBoundValue.scala:38)
	at com.signetworks.dance.http.SynchronizedSessionBinder$class.bindSession(SynchronizedSessionBinder.scala:21)
	at com.signetworks.v3.servlet.V3Servlet.bindSession(V3Servlet.scala:31)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3.apply(RequestDispatcher.scala:31)
	at com.signetworks.dance.http.RequestDispatcher$$anonfun$dispatchRequest$3.apply(RequestDispatcher.scala:31)
	at scala.Option.getOrElse(Option.scala:59)
	at com.signetworks.dance.http.RequestDispatcher$class.dispatchRequest(RequestDispatcher.scala:30)
	at com.signetworks.v3.servlet.V3Servlet.dispatchRequest(V3Servlet.scala:31)
	at com.signetworks.dance.http.RequestDispatcher$class.handleRequest(RequestDispatcher.scala:22)
	at com.signetworks.v3.servlet.V3Servlet.handleRequest(V3Servlet.scala:31)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1$$anonfun$apply$mcV$sp$1.apply(DanceServlet.scala:47)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1$$anonfun$apply$mcV$sp$1.apply(DanceServlet.scala:46)
	at com.signetworks.dance.http.DanceServlet$$anonfun$bindRequest$1.apply$mcV$sp(DanceServlet.scala:63)
	at com.signetworks.dance.http.DanceServlet$$anonfun$bindRequest$1.apply(DanceServlet.scala:63)
	at com.signetworks.dance.http.DanceServlet$$anonfun$bindRequest$1.apply(DanceServlet.scala:63)
	at com.signetworks.dance.util.ThreadBoundValue.withValue(ThreadBoundValue.scala:38)
	at com.signetworks.dance.http.DanceServlet.bindRequest(DanceServlet.scala:63)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1.apply$mcV$sp(DanceServlet.scala:45)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1.apply(DanceServlet.scala:45)
	at com.signetworks.dance.http.DanceServlet$$anonfun$service$1.apply(DanceServlet.scala:45)
	at com.signetworks.dance.util.ThreadBoundValue.withValue(ThreadBoundValue.scala:38)
	at com.signetworks.dance.http.DanceServlet.service(DanceServlet.scala:42)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
	at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
	at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
	at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:332)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:233)
	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
	at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
	at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
	at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
	at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
	at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
	at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
	at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
	at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
	at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
	at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
	at java.lang.Thread.run(Thread.java:637)

> NPE in MappingInfo.java line 1514
> ---------------------------------
>
>                 Key: OPENJPA-1804
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1804
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 2.0.1
>            Reporter: Willis Blackburn
>
> I am encountering a NPE at MappingInfo.java line 1514.  I'm sorry I don't have time to
prepare a test case right now.  I'm not even 100% sure what is causing the problem, but it
seems to be something like this:
> I have classes Organization, Group, User, and AddressBook.
> Group has a reference (many-to-one) to Organization.
> I'm using field-level access and the Java 6 runtime enhancer.  (NOT the build-time enhancer
or the agent.)
> In ManagedClassSubclasser.prepareUnenhancedClasses, the code receives a list of Class
objects--the ones in persistence.xml.  They are not in the same order as they are in persistence.xml,
but I don't know if that's important.  The first one is Group.  During the processing of Group,
the code invokes ClassMapping.setTable to set the table name, which is "group_table."  This
comes from the @Table annotation of Group.  So far, so good.  Then the code does some additional
processing on the relationship mappings of Group, which include the reference to Organization.
 During the processing of that relationship, the code calls MappingInfo.mergeJoinColumn. 
On line 1367, the method calls rel.getTable.  The "rel" variable points to the ClassMapping
for Organization.  Remember that prepareUnenhancedClasses hasn't gotten to Organization yet--it's
still working on Group--and so I assume that this Organization mapping was created on-demand.
 However, rel.getTable returns null.  The Organization class has a @Table attribute, and I
can see that the table name has been loaded in the ClassMappingInfo instance attached to the
ClassMapping for Organization, however the table name has not yet been copied from ClassMappingInfo
to ClassMapping.  Later, the mergeJoinColumn method attempts to dereference the null table
name and generates the NPE.
> Bottom line:  When using the Java 6, runtime enhancer, if class A has a reference to
class B, and both classes have @Table annotations (at least), and class A is processed first,
then it produces a NPE.

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