Jboss 3 & MySQL - Cannot Connect to Database - Transaction I
I'm fairly new to J2EE and JBoss...but I've followed the documentation straightforward, yet still hit a brick wall with this one. What does the following exception mean?
2003-02-04 18:46:08,570 ERROR [org.jboss.ejb.plugins.LogInterceptor] EJBException:
javax.ejb.EJBException: Unable to connect to database. Could not create connection; - nested throwable: (java.sql.SQLException: Could not retrieve transaction isolation level from server); - nested throwable: (org.jboss.resource.ResourceException: Could not create connection; - nested throwable: (java.sql.SQLException: Could not retrieve transaction isolation level from server))
at SavingsAccountBean.setEntityContext(SavingsAccountBean.java:172)
at org.jboss.ejb.EntityEnterpriseContext.(EntityEnterpriseContext.java:76)
at org.jboss.ejb.plugins.EntityInstancePool.create(EntityInstancePool.java:86)
at org.jboss.ejb.plugins.AbstractInstancePool.get(AbstractInstancePool.java:209)
at org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome(EntityInstanceInterceptor.java:78)
at org.jboss.ejb.plugins.EntityLockInterceptor.invokeHome(EntityLockInterceptor.java:79)
at org.jboss.ejb.plugins.EntityCreationInterceptor.invokeHome(EntityCreationInterceptor.java:44)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:111)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:178)
at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:52)
at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:105)
at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:129)
at org.jboss.ejb.EntityContainer.invokeHome(EntityContainer.java:487)
at org.jboss.ejb.Container.invoke(Container.java:730)
at org.jboss.ejb.EntityContainer.invoke(EntityContainer.java:1058)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:517)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:382)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
at sun.rmi.transport.Transport$1.run(Transport.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:536)
