I have written a wrapper class to manage the creation of drools stateful sessions. When I try to test my rule sets I get the following exception which appears to be a Weld exception(i.e weld is trying to write out something in conversation). This only started occuring when I indicated to drools that the session can run multithreaded:

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java.lang.IllegalStateException: Error launching test com.nasdaq.backoffice.billing.process.PhlxCoreProcessTest public void com.nasdaq.backoffice.billing.process.PhlxCoreProcessTest.testPhlxCoreProcess()
          at org.jboss.arquillian.protocol.servlet.ServletMethodExecutor.invoke(ServletMethodExecutor.java:122)
          at org.jboss.arquillian.container.test.impl.execution.RemoteTestExecuter.execute(RemoteTestExecuter.java:120)
          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)
          at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
          at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
          at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
          at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:134)
          at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:114)
          at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:67)
          at org.jboss.arquillian.container.test.impl.execution.ClientTestExecuter.execute(ClientTestExecuter.java:57)
          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)
          at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
          at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
          at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
          at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createContext(ContainerEventController.java:142)
          at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createTestContext(ContainerEventController.java:129)
          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)
          at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
          at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
          at org.jboss.arquillian.test.impl.TestContextHandler.createTestContext(TestContextHandler.java:89)
          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)
          at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
          at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
          at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:75)
          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)
          at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
          at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
          at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:60)
          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)
          at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
          at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
          at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:134)
          at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.test(EventTestRunnerAdaptor.java:111)
          at org.jboss.arquillian.junit.Arquillian$6.evaluate(Arquillian.java:263)
          at org.jboss.arquillian.junit.Arquillian$4.evaluate(Arquillian.java:226)
          at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
          at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
          at org.jboss.arquillian.junit.Arquillian$5.evaluate(Arquillian.java:240)
          at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
          at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
          at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
          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:185)
          at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
          at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
          at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:199)
          at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
          at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:147)
          at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
          at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: org.drools.impl.StatefulKnowledgeSessionImpl
          at java.io.ObjectInputStream.readObject0(Unknown Source)
          at java.io.ObjectInputStream.readObject(Unknown Source)
          at org.jboss.arquillian.test.spi.ExceptionProxy.readExternal(ExceptionProxy.java:177)
          at java.io.ObjectInputStream.readExternalData(Unknown Source)
          at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
          at java.io.ObjectInputStream.readObject0(Unknown Source)
          at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
          at java.io.ObjectInputStream.readSerialData(Unknown Source)
          at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
          at java.io.ObjectInputStream.readObject0(Unknown Source)
          at java.io.ObjectInputStream.readObject(Unknown Source)
          at org.jboss.arquillian.protocol.servlet.ServletMethodExecutor.execute(ServletMethodExecutor.java:214)
          at org.jboss.arquillian.protocol.servlet.ServletMethodExecutor.executeWithRetry(ServletMethodExecutor.java:140)
          at org.jboss.arquillian.protocol.servlet.ServletMethodExecutor.invoke(ServletMethodExecutor.java:118)
          ... 75 more
Caused by: java.io.NotSerializableException: org.drools.impl.StatefulKnowledgeSessionImpl
          at java.io.ObjectOutputStream.writeObject0(Unknown Source)
          at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
          at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
          at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
          at java.io.ObjectOutputStream.writeObject0(Unknown Source)
          at java.io.ObjectOutputStream.writeObject(Unknown Source)
          at org.jboss.arquillian.test.spi.ExceptionProxy.writeExternal(ExceptionProxy.java:227)
          at java.io.ObjectOutputStream.writeExternalData(Unknown Source)
          at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
          at java.io.ObjectOutputStream.writeObject0(Unknown Source)
          at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
          at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
          at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
          at java.io.ObjectOutputStream.writeObject0(Unknown Source)
          at java.io.ObjectOutputStream.writeObject(Unknown Source)
          at org.jboss.arquillian.protocol.servlet.runner.ServletTestRunner.writeObject(ServletTestRunner.java:229)
          at org.jboss.arquillian.protocol.servlet.runner.ServletTestRunner.executeTest(ServletTestRunner.java:163)
          at org.jboss.arquillian.protocol.servlet.runner.ServletTestRunner.execute(ServletTestRunner.java:126)
          at org.jboss.arquillian.protocol.servlet.runner.ServletTestRunner.doGet(ServletTestRunner.java:90)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
          at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:62)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
          at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
          at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
          at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50)
          at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:154)
          at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
          at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
          at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
          at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
          at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
          at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
          at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
          at java.lang.Thread.run(Unknown Source)
 
 
 
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