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Catching Internal Exceptions [message #683400]

Mon, 13 June 2011 13:05

Eclipse User

Hi,

how can i catch Eclipse Link exceptions?
For example if i start my application and the server insn't running i get:

[EL Severe]: Local Exception Stack: 
Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.2.0.v20110202-r8913): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLNonTransientConnectionException: java.net.ConnectException: Fehler beim Herstellen der Verbindung zum Server localhost am Port 1527. Nachricht: Connection refused: connect.
Error Code: 40000
	at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:324)
	at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:319)
	at org.eclipse.persistence.sessions.DefaultConnector.connect(DefaultConnector.java:138)
	at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)
	at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connectInternal(DatasourceAccessor.java:330)
	at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.connectInternal(DatabaseAccessor.java:291)
	at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connect(DatasourceAccessor.java:418)
	at org.eclipse.persistence.sessions.server.ConnectionPool.buildConnection(ConnectionPool.java:167)
	at org.eclipse.persistence.sessions.server.ConnectionPool.startUp(ConnectionPool.java:453)
	at org.eclipse.persistence.sessions.server.ServerSession.connect(ServerSession.java:484)
	at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.login(DatabaseSessionImpl.java:640)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:235)
	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:394)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:185)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:242)
	at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:230)
	at de.fh.stockgrabber.model.StockGrabberEntityManagerFactory.createEntityManager(StockGrabberEntityManagerFactory.java:104)
	at de.fh.stockgrabber.model.StockGrabberEditorModel.<init>(StockGrabberEditorModel.java:37)
	at de.fh.stockgrabber.project.model.ProjectsModel.<init>(ProjectsModel.java:40)
	at de.fh.stockgrabber.views.MainView.createPartControl(MainView.java:105)
	at org.eclipse.ui.internal.ViewReference.createPartHelper
        ..........
        [many more]

The code crashes when i try to create the EntityManager:

		try {
			em = StockGrabberEntityManagerFactory.createEntityManager();
			transaction = em.getTransaction();
			transaction.begin();
		} catch (Exception e) {
			System.exit(0);

The Exception is catched (the app exists), but it doesn't stop the output as seen above. So how can i handle this; or can't i cause it's an "Internal Exception"?

Re: Catching Internal Exceptions [message #683429 is a reply to message #683400]

Mon, 13 June 2011 13:55