Description Michael OBrien 2010-09-01 09:42:35 EDT

>If you get the following exception when running an SE JPA application with/without DDLGeneration
>You are missing a reference to VendorNameToPlatformMapping.properties in eclipselink.jar or in the core/resource directory for IDE projects.

>Reproduction: - disable target-database property or use combined orm.xml and persistence.xml elements
<!-- property name="eclipselink.target-database" value="Derby"/-->

>Exception
[EL Finest]: 2010-09-01 08:42:10.633--ServerSession(23583040)--Thread(Thread[main,5,main])--property=eclipselink.validation-only; value=False
[EL Info]: 2010-09-01 08:42:10.633--ServerSession(23583040)--Thread(Thread[main,5,main])--EclipseLink, version: Eclipse Persistence Services - 2.2.0.qualifier
[EL Warning]: 2010-09-01 08:42:10.844--Thread(Thread[main,5,main])--Can not load resource [org/eclipse/persistence/internal/helper/VendorNameToPlatformMapping.properties] that loads mapping from vendor name to database platform. Autodetection of database platform will not work.
[EL Fine]: 2010-09-01 08:42:10.844--Thread(Thread[main,5,main])--Detected Vendor platform: null
[EL Info]: 2010-09-01 08:42:10.844--Thread(Thread[main,5,main])--Not able to detect platform for vendor name [Apache Derby]. Defaulting to [org.eclipse.persistence.platform.database.DatabasePlatform]. The database dialect used may not match with the database you are using. Please explicitly provide a platform using property eclipselink.platform.class.name.
[EL Config]: 2010-09-01 08:42:10.854--ServerSession(23583040)--Connection(21479899)--Thread(Thread[main,5,main])--connecting(DatabaseLogin(
	platform=>DatabasePlatform
	user name=> "APP"
	datasource URL=> "jdbc:derby://127.0.0.1:1527/weblogic;create=true"
))
[EL Config]: 2010-09-01 08:42:10.854--ServerSession(23583040)--Connection(535863)--Thread(Thread[main,5,main])--Connected: jdbc:derby://127.0.0.1:1527/weblogic;create=true
	User: APP
	Database: Apache Derby  Version: 10.5.3.0 - (802917)
	Driver: Apache Derby Network Client JDBC Driver  Version: 10.5.3.0 - (802917)
[EL Severe]: 2010-09-01 08:42:10.874--ServerSession(23583040)--Thread(Thread[main,5,main])--Local Exception Stack: 
Exception [EclipseLink-7144] (Eclipse Persistence Services - 2.2.0.qualifier): org.eclipse.persistence.exceptions.ValidationException
Exception Description: EL_CELL_SEQ: platform DatabasePlatform does not support NativeSequence.
	at org.eclipse.persistence.exceptions.ValidationException.platformDoesNotSupportSequence(ValidationException.java:1959)
	at org.eclipse.persistence.sequencing.NativeSequence.onConnect(NativeSequence.java:143)
	at org.eclipse.persistence.sequencing.Sequence.onConnect(Sequence.java:270)
	at org.eclipse.persistence.internal.sequencing.SequencingManager.onConnectAllSequences(SequencingManager.java:843)
	at org.eclipse.persistence.internal.sequencing.SequencingManager.onConnect(SequencingManager.java:706)
	at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.initializeSequencing(DatabaseSessionImpl.java:148)
	at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.initializeDescriptors(DatabaseSessionImpl.java:420)
	at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.initializeDescriptors(DatabaseSessionImpl.java:406)
	at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.postConnectDatasource(DatabaseSessionImpl.java:667)
	at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:615)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:228)
	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:383)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:156)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:213)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:201)
	at org.eclipse.persistence.example.jpa.server.common.DDLGenerationClient.initialize(DDLGenerationClient.java:141)