java.lang.IllegalStateException: Attempting to execute an operation on a closed EntityManagerFactory.
at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.verifyOpen(EntityManagerFactoryImpl.java:137)
at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:125)
at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:121)
at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:76)
at org.rssowl.contrib.jpa.internal.DBHelper.loadEntity(DBHelper.java:100)
at org.rssowl.contrib.jpa.internal.AbstractManager.loadEntity(AbstractManager.java:62)
at org.rssowl.contrib.jpa.internal.ModelDAOImpl.loadNews(ModelDAOImpl.java:169)
at org.rssowl.ui.internal.editors.feed.NewsServer.process(NewsServer.java:335)
at org.rssowl.ui.internal.editors.feed.NewsServer.access$2(NewsServer.java:276)
at org.rssowl.ui.internal.editors.feed.NewsServer$2.run(NewsServer.java:270)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.rssowl.ui.internal.editors.feed.NewsServer.safeProcess(NewsServer.java:263)
at org.rssowl.ui.internal.editors.feed.NewsServer.access$1(NewsServer.java:262)
at org.rssowl.ui.internal.editors.feed.NewsServer$1.run(NewsServer.java:227)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)