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Bug 336047

Summary: Multiple Mapping files do not work in one persistence unit
Product: z_Archived Reporter: Gerald <neo79s>
Component: EclipselinkAssignee: Nobody - feel free to take it <nobody>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: P3 CC: eclipselink.orm-inbox, guy.pelletier, j.edward.rayl, neo79s, tom.ware
Version: unspecified   
Target Milestone: ---   
Hardware: PC   
OS: Windows 7   
Whiteboard:
Attachments:
Description Flags
Proposed changes none

Description Gerald CLA 2011-02-02 05:23:24 EST 
I placed 2 or more xml-mapping files to 1 persistence unit.
following exception occured:

Exception in thread "main" java.lang.ExceptionInInitializerError
	at com.adva.fnp.pypdb.YP_DBHdlr.init(YP_DBHdlr.java:209)
	at com.adva.fnp.pypdb.YP_DBHdlr.getInstance(YP_DBHdlr.java:130)
	at com.adva.fnp.planner.common.yp.YPComponentFactory.getInstance(YPComponentFactory.java:145)
	at com.adva.fnp.planner.common.yp.YPControllerImpl.<init>(YPControllerImpl.java:68)
	at com.adva.fnp.planner.common.yp.YPControllerProvider.getNonConfigurationYPController(YPControllerProvider.java:124)
	at com.adva.fnp.planner.common.yp.YPControllerProvider.getServiceFor(YPControllerProvider.java:109)
	at com.adva.fnp.planner.common.yp.YPControllerProvider.getServiceFastFor(YPControllerProvider.java:76)
	at com.adva.fnp.planner.common.yp.components.WavelengthHelper.getWavelengthType(WavelengthHelper.java:160)
	at com.adva.fnp.planner.PlannerTestCase.<clinit>(PlannerTestCase.java:99)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:169)
	at com.intellij.junit4.JUnit4TestRunnerUtil.loadTestClass(JUnit4TestRunnerUtil.java:170)
	at com.intellij.junit4.JUnit4TestRunnerUtil.appendTestClass(JUnit4TestRunnerUtil.java:154)
	at com.intellij.junit4.JUnit4TestRunnerUtil.buildRequest(JUnit4TestRunnerUtil.java:74)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:61)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:192)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:64)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:110)
Caused by: Exception [EclipseLink-30005] (Eclipse Persistence Services - 2.1.1.v20100817-r8050): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException
Exception Description: An exception was thrown while searching for persistence archives with ClassLoader: sun.misc.Launcher$AppClassLoader@11b86e7
Internal Exception: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.1.1.v20100817-r8050): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [fnp-db] failed.
Internal Exception: java.lang.NullPointerException
	at org.eclipse.persistence.exceptions.PersistenceUnitLoadingException.exceptionSearchingForPersistenceResources(PersistenceUnitLoadingException.java:126)
	at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:136)
	at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:65)
	at com.adva.fnp.common.persistence.FNP_DBHelper.initEntityManagerFactory(FNP_DBHelper.java:192)
	at com.adva.fnp.common.persistence.FNP_DBHelper.<clinit>(FNP_DBHelper.java:58)
	... 22 more
Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.1.1.v20100817-r8050): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [fnp-db] failed.
Internal Exception: java.lang.NullPointerException
	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:1005)
	at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.callPredeploy(JPAInitializer.java:88)
	at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:127)
	... 25 more
Caused by: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.1.1.v20100817-r8050): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [fnp-db] failed.
Internal Exception: java.lang.NullPointerException
	at org.eclipse.persistence.exceptions.EntityManagerSetupException.predeployFailed(EntityManagerSetupException.java:210)
	... 28 more
Caused by: java.lang.NullPointerException
	at org.eclipse.persistence.internal.jpa.metadata.xml.XMLPersistenceUnitMetadata.merge(XMLPersistenceUnitMetadata.java:156)
	at org.eclipse.persistence.internal.jpa.metadata.MetadataProject.setPersistenceUnitMetadata(MetadataProject.java:1663)
	at org.eclipse.persistence.internal.jpa.metadata.xml.XMLEntityMappings.processPersistenceUnitMetadata(XMLEntityMappings.java:602)
	at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processEntityMappings(MetadataProcessor.java:454)
	at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:437)
	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:959)
	... 27 more

The workaround was to add a <persistence-unit-defaults> tag to each mapping file.

The full details are in this thread:
http://www.eclipse.org/forums/index.php?t=msg&goto=651497&S=752ceb16cec25c31813cafb8d3723f4b#msg_651497
Comment 1 Guy Pelletier CLA 2011-02-03 10:42:39 EST 
You can also get around the issue by removing one of the persistence unit metadata from one of the mapping files as they are the same (you would have seen a conflict exception otherwise had they been different). Typically a persistence unit metadata is only specified in one mapping file but it is valid to have it in multiples, e.g. if you want to seperate Eclipselink specific metadata from JPA metadata into an eclipselink-orm.xml. (an eclipselink-orm.xml also has the power to override as well and avoid conflict exceptions as mentioned previously)
Comment 2 Tom Ware CLA 2011-02-10 09:10:43 EST 
Setting target and priority.  See the following page for the meanings of these fields:

http://wiki.eclipse.org/EclipseLink/Development/Bugs/Guidelines
Comment 3 Guy Pelletier CLA 2011-05-09 14:53:50 EDT 
Created attachment 195126 [details]
Proposed changes
Comment 4 Guy Pelletier CLA 2011-05-09 15:24:15 EDT 
Changes have been submitted.

Verified by: Tom Ware

Test: Metadata processing error therefore existing XML model modified to expose the exception. With the fix in place, the exception goes away and all tests pass (full regression test suite and extended jpa test suite).
Comment 5 Eclipse Webmaster CLA 2022-06-09 10:22:12 EDT 
The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink