well I did the above instructions and still didn't work. the persistence.xml in the exploded deployment in the %JBOSS_HOME%/server/default/deploy folder was only found in C:\jboss-4.2.1.GA\server\default\deploy\SHIMS.ear\SHIMS.jar\META-INF so I closed Eclipse and copied that persistence.xml into: C:\jboss-4.2.1.GA\server\default\deploy\SHIMS.ear\META-INF as well just to be safe. restarted Eclipse and rebuild the hibernate config. when I refresh the hibernate config I still get the same errors: org.hibernate.console.HibernateConsoleRuntimeException: Persistence unit not found: 'SHIMS'. | | org.hibernate.console.HibernateConsoleRuntimeException: Persistence unit not found: 'SHIMS'. | at org.hibernate.console.ConsoleConfiguration.buildJPAConfiguration(ConsoleConfiguration.java:134) | at org.hibernate.console.ConsoleConfiguration.buildConfiguration(ConsoleConfiguration.java:496) | at org.hibernate.console.ConsoleConfiguration.access$0(ConsoleConfiguration.java:484) | at org.hibernate.console.ConsoleConfiguration$2.execute(ConsoleConfiguration.java:203) | at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:65) | at org.hibernate.console.ConsoleConfiguration.buildWith(ConsoleConfiguration.java:185) | at org.hibernate.console.ConsoleConfiguration.build(ConsoleConfiguration.java:106) | at org.hibernate.eclipse.console.workbench.ConsoleConfigurationWorkbenchAdapter.getChildren(ConsoleConfigurationWorkbenchAdapter.java:38) | at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:97) | at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:103) | at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:196) | at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) | | org.hibernate.console.HibernateConsoleRuntimeException: Could not create JPA based Configuration | | org.hibernate.console.HibernateConsoleRuntimeException: Could not create JPA based Configuration | at org.hibernate.console.ConsoleConfiguration.buildJPAConfiguration(ConsoleConfiguration.java:142) | at org.hibernate.console.ConsoleConfiguration.buildConfiguration(ConsoleConfiguration.java:496) | at org.hibernate.console.ConsoleConfiguration.access$0(ConsoleConfiguration.java:484) | at org.hibernate.console.ConsoleConfiguration$2.execute(ConsoleConfiguration.java:203) | at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:65) | at org.hibernate.console.ConsoleConfiguration.buildWith(ConsoleConfiguration.java:185) | at org.hibernate.console.ConsoleConfiguration.build(ConsoleConfiguration.java:106) | at org.hibernate.eclipse.console.workbench.ConsoleConfigurationWorkbenchAdapter.getChildren(ConsoleConfigurationWorkbenchAdapter.java:38) | at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:97) | at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:103) | at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:196) | at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) | Caused by: org.hibernate.console.HibernateConsoleRuntimeException: Persistence unit not found: 'SHIMS'. | at org.hibernate.console.ConsoleConfiguration.buildJPAConfiguration(ConsoleConfiguration.java:134) | ... 11 more | | org.hibernate.console.HibernateConsoleRuntimeException: Could not load JPA Configuration | | org.hibernate.console.HibernateConsoleRuntimeException: Could not load JPA Configuration | at org.hibernate.console.ConsoleConfiguration.buildConfiguration(ConsoleConfiguration.java:499) | at org.hibernate.console.ConsoleConfiguration.access$0(ConsoleConfiguration.java:484) | at org.hibernate.console.ConsoleConfiguration$2.execute(ConsoleConfiguration.java:203) | at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:65) | at org.hibernate.console.ConsoleConfiguration.buildWith(ConsoleConfiguration.java:185) | at org.hibernate.console.ConsoleConfiguration.build(ConsoleConfiguration.java:106) | at org.hibernate.eclipse.console.workbench.ConsoleConfigurationWorkbenchAdapter.getChildren(ConsoleConfigurationWorkbenchAdapter.java:38) | at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:97) | at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:103) | at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:196) | at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) | Caused by: org.hibernate.console.HibernateConsoleRuntimeException: Could not create JPA based Configuration | at org.hibernate.console.ConsoleConfiguration.buildJPAConfiguration(ConsoleConfiguration.java:142) | at org.hibernate.console.ConsoleConfiguration.buildConfiguration(ConsoleConfiguration.java:496) | ... 10 more | Caused by: org.hibernate.console.HibernateConsoleRuntimeException: Persistence unit not found: 'SHIMS'. | at org.hibernate.console.ConsoleConfiguration.buildJPAConfiguration(ConsoleConfiguration.java:134) | ... 11 more Once again, here is the contents of the persistence.xml: <?xml version="1.0" encoding="UTF-8"?> | <!-- Persistence deployment descriptor for dev profile --> | <persistence xmlns="http://java.sun.com/xml/ns/persistence" | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" | version="1.0"> | | <persistence-unit name="SHIMS"> | <provider>org.hibernate.ejb.HibernatePersistence</provider> | <jta-data-source>java:/SHIMSDatasource</jta-data-source> | <properties> | <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect"/> | <!-- | <property name="hibernate.hbm2ddl.auto" value="validate"/> | --> | <property name="hibernate.show_sql" value="true"/> | <property name="hibernate.format_sql" value="true"/> | <property name="jboss.entity.manager.factory.jndi.name" value="java:/SHIMSEntityManagerFactory"/> | <property name="hibernate.default_catalog" value="boSHIMS"/> | <property name="hibernate.default_schema" value="dbo"/> | </properties> | </persistence-unit> | | <persistence-unit name="coxIM"> | <provider>org.hibernate.ejb.HibernatePersistence</provider> | <jta-data-source>java:/COXIMDatasource</jta-data-source> | <properties> | <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect"/> | <!-- | <property name="hibernate.hbm2ddl.auto" value="validate"/> | --> | <property name="hibernate.show_sql" value="true"/> | <property name="hibernate.format_sql" value="true"/> | <property name="jboss.entity.manager.factory.jndi.name" value="java:/COXIMEntityManagerFactory"/> | <property name="hibernate.default_catalog" value="coxIM"/> | <property name="hibernate.default_schema" value="dbo"/> | </properties> | </persistence-unit> | | </persistence> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4142402#... 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