JBoss exception Transaction is not active: javax.transaction.RollbackException: The transaction is not active!

Sometimes you get this exception when using JBoss (5.1.0 and Seam 2.2 in my case):

14:08:17,312 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.TransactionReaper_18] - TransactionReaper::check timeout for TX -3f57fd63:6ae:4f5df31e:b7in state RUN 14:08:17,312 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.BasicAction_58] - Abort of action id -3f57fd63:6ae:4f5df31e:b7 invoked while multiple threads active within it. 14:08:17,312 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.CheckedAction_2] - CheckedAction::check - atomic action -3f57fd63:6ae:4f5df31e:b7 aborting with 1 threads active! 14:08:17,343 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: null 14:08:17,343 ERROR [JDBCExceptionReporter] Transaction is not active: tx=TransactionImple < ac, BasicAction: -3f57fd63:6ae:4f5df31e:b7 status: ActionStatus.ABORTING >; - nested throwable: (javax.resource.ResourceException: Transaction is not active: tx=TransactionImple < ac, BasicAction: -3f57fd63:6ae:4f5df31e:b7 status: ActionStatus.ABORTING >) 14:08:17,359 ERROR [TxPolicy] javax.ejb.EJBTransactionRolledbackException: org.hibernate.exception.GenericJDBCException: Cannot open connection 14:08:17,375 ERROR [TxPolicy] javax.ejb.EJBTransactionRolledbackException: org.hibernate.exception.GenericJDBCException: Cannot open connection 14:08:17,453 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.TransactionReaper_7] - TransactionReaper::doCancellations worker Thread[Thread-10,5,jboss] successfully canceled TX -3f57fd63:6ae:4f5df31e:b7 14:08:17,500 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.BasicAction_40] - Abort called on already aborted atomic action -3f57fd63:6ae:4f5df31e:b7 14:08:17,515 ERROR [AsynchronousExceptionHandler] Exception thrown whilst executing asynchronous call javax.ejb.EJBTransactionRolledbackException: Transaction rolled back at org.jboss.ejb3.tx.Ejb3TxPolicy.handleEndTransactionException(Ejb3TxPolicy.java:54) at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:175) at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87) at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:190) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.security.RoleBasedAuthorizationInterceptorv2.invoke(RoleBasedAuthorizationInterceptorv2.java:201) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:186) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:176) at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:216) at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:207) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) at org.jboss.seam.async.AsynchronousInterceptor.aroundInvoke(AsynchronousInterceptor.java:52) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) 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:597) at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144) at org.jboss.seam.async.AsynchronousInvocation$1.process(AsynchronousInvocation.java:62) at org.jboss.seam.async.Asynchronous$ContextualAsynchronousRequest.run(Asynchronous.java:80) at org.jboss.seam.async.AsynchronousInvocation.execute(AsynchronousInvocation.java:44) at org.jboss.seam.async.QuartzDispatcher$QuartzJob.execute(QuartzDispatcher.java:243) at org.quartz.core.JobRunShell.run(JobRunShell.java:202) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529) Caused by: javax.transaction.RollbackException: [com.arjuna.ats.internal.jta.transaction.arjunacore.inactive] [com.arjuna.ats.internal.jta.transaction.arjunacore.inactive] The transaction is not active! at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1414) at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:137) at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75) at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:170) ... 47 more

For 99% sure this is caused by a timeout. Unfortunately you can't immediately see that from the exception.

The fix
Increase the timeout in transaction-jboss-beans.xml in your JBoss deploy dir. For example if you have JBoss installed in:

C:\jboss-5.1.0.GA\server\default\deploy

then open transaction-jboss-beans.xml and set the field transactionTimeout much higher. E.g at 3000 (default is 300).
In older JBoss version this setting used to be in default/conf/jboss-server.xml, see here.
The official documentation can be found here.

Why cancel-button now also first on Android?

Just wondering about this big time...

Why is Android switching the standard buttons order for Android 4.0 and higher? See for example this screenshot, the cancel button is now the first button!
I was always taught that what the user most likely wants to do should be first, and so the dismissive button last.
And Cancel is usually not what to user wants to do!

Apple is doing it also in their iOS, is Android now just plainly copying it?
Definitely prefer Cancel at the end, (western) reading occurs from left to right, so now one always has to read/skip the dismissive button!

From the expert the conclusion is just to be consistent. That means at least within the Android platform it is not consistent between pre 4.0 and 4.0+... I think an unneeded and unnecessary change.