Hello list. My setup is a Liferay CE 6.0.6 on JBoss AS 5.1.0. I have a strange error in my process causing some headache. java.lang.Math... but I googled a bit with this error and found similar reports with other standard JDK classes too, so it not the class, but something with JBoss. Any ideas? 2012-06-19 16:53:44,972 ERROR [fi.dise.provisioning.PersonAccount] (liferay/scheduler_dispatch) java.lang.IllegalStateException: BaseClassLoader@1734e3de{vfsfile:/home/liferay/jboss-5.1.0/server/default/deploy/masters2.war/} classLoader is not connected to a domain (probably undeployed?) for class java.lang.Math at org.jboss.classloader.spi.base.BaseClassLoader.loadClassFromDomain(BaseClassLoader.java:793) at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:441) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at fi.dise.provisioning.PersonAccount.updateStatus(PersonAccount.java:332) at fi.dise.provisioning.PersonProvisioningEngine.receive(PersonProvisioningEngine.java:695) at sun.reflect.GeneratedMethodAccessor1098.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:54) at $Proxy1082.receive(Unknown Source) at com.liferay.portal.kernel.scheduler.messaging.SchedulerEventMessageListenerWrapper.receive(SchedulerEventMessageListenerWrapper.java:57) at com.liferay.portal.kernel.messaging.InvokerMessageListener.receive(InvokerMessageListener.java:63) at com.liferay.portal.kernel.messaging.ParallelDestination$1.run(ParallelDestination.java:61) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662)