At a glance it looks like the wrong class loader is used to deserialize the exception. Carlo ------------------------------------------------------------------------------- Test set: org.jboss.as.test.embedded.demos.ejb3.StatefulBeanTestCase ------------------------------------------------------------------------------- Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.25 sec <<< FAILURE! testSFSB(org.jboss.as.test.embedded.demos.ejb3.StatefulBeanTestCase) Time elapsed: 0.03 sec <<< ERROR! java.lang.ClassNotFoundException: javax.ejb.EJBException from [Module "org.jboss.arquillian.protocol.jmx:main" from local module loader @5b6df84b (roots: /home/carlo/work/jboss-as/testsuite/smoke/target/modules,/home/carlo/work/jboss-as/testsuite/smoke/../../build/target/jboss-7.0.0.Alpha2/modules)] at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:184) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:357) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:329) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:306) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:100) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:247) at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:603) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1574) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350) at org.jboss.arquillian.protocol.jmx.Utils.deserialize(Utils.java:78) at org.jboss.arquillian.protocol.jmx.JMXMethodExecutor.invoke(JMXMethodExecutor.java:108) at org.jboss.arquillian.impl.handler.ContainerTestExecuter.callback(ContainerTestExecuter.java:50) at org.jboss.arquillian.impl.handler.ContainerTestExecuter.callback(ContainerTestExecuter.java:40) at org.jboss.arquillian.impl.event.MapEventManager.fire(MapEventManager.java:63) at org.jboss.arquillian.impl.context.AbstractEventContext.fire(AbstractEventContext.java:115) at org.jboss.arquillian.impl.EventTestRunnerAdaptor.test(EventTestRunnerAdaptor.java:160) at org.jboss.arquillian.junit.Arquillian$6.evaluate(Arquillian.java:247) at org.jboss.arquillian.junit.Arquillian$4.evaluate(Arquillian.java:210) at org.jboss.arquillian.junit.Arquillian$5$1.evaluate(Arquillian.java:228) at org.jboss.arquillian.junit.Arquillian$MultiStatementExecutor.execute(Arquillian.java:300) at org.jboss.arquillian.junit.Arquillian$5.evaluate(Arquillian.java:224) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.jboss.arquillian.junit.Arquillian$2.evaluate(Arquillian.java:166) at org.jboss.arquillian.junit.Arquillian$3$1.evaluate(Arquillian.java:189) at org.jboss.arquillian.junit.Arquillian$MultiStatementExecutor.execute(Arquillian.java:300) at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:185) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:128) at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:59) at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:120) at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:103) at org.apache.maven.surefire.Surefire.run(Surefire.java:169) 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.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:339) at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1011) 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.modules.Module.run(Module.java:261) at org.jboss.modules.Main.main(Main.java:236)