Hi ! I'm deploying a simple stateless EJB under jboss 4.0.5 GA it's throws this following trace : org.jboss.util.NestedSQLException: Problem locating real ConnectionManager: jboss.jca:service=LocalTxCM,name=MyDS; - nested throwable: (java.lang.IllegalStateException: No 'jboss' MBeanServer found!); - nested throwable: (Problem locating real ConnectionManager: jboss.jca:service=LocalTxCM,name=MyDS; - nested throwable: (java.lang.IllegalStateException: No 'jboss' MBeanServer found!)) at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:94) at com.solutions.auto.persistence.connection.DBManager.getConnection(DBManager.java:129) at com.solutions.auto.persistence.dao.DaoFactory.createConnection(DaoFactory.java:57) at com.solutions.auto.persistence.indicator.IndicatorDaoImpl.selectIndicators(IndicatorDaoImpl.java:66) at com.solutions.auto.persistence.indicator.TestIndicatorDaoImpl.testSelectIndicators(TestIndicatorDaoImpl.java:50) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) (RemoteTestRunner.java:344) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196) Caused by: Problem locating real ConnectionManager: jboss.jca:service=LocalTxCM,name=MyDS; - nested throwable: (java.lang.IllegalStateException: No 'jboss' MBeanServer found!) at org.jboss.resource.JBossResourceException.rethrowAsResourceException(JBossResourceException.java:61) at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.getCM(BaseConnectionManager2.java:881) at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:842) at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88) ... 19 more Caused by: java.lang.IllegalStateException: No 'jboss' MBeanServer found! at org.jboss.mx.util.MBeanServerLocator.locateJBoss(MBeanServerLocator.java:122) at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.getCM(BaseConnectionManager2.java:875) ... 21 more I get this Exception when trying to get java.sql.Connection from my datasource provided by an EJB : System.setProperty("java.security.policy", "client.policy"); if (System.getSecurityManager() == null) System.setSecurityManager(new RMISecurityManager()); Properties env = new Properties(); env.setProperty("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory"); env.setProperty("java.naming.provider.url", "180.162.10.10:1099"); env.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming"); Context ctx = new InitialContext(env); if (System.getSecurityManager() == null) { System.setSecurityManager(new RMISecurityManager()); } Object obj = ctx.lookup("MyDatasourceBean"); MyDatasourceHome home = (MyDatasourceHome) PortableRemoteObject.narrow(obj,MyDatasourceHome.class); MyDatasourceRemote myDatasourceRemote = home.create(); ds= myDatasourceRemote.giveDatasource("MyDS"); Could you help me please ! thank you in advance Adil View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4027559#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...