2014-05-28 13:31:32,022 ERROR info.magnolia.module.workflow.WorkflowBaseModule  : Workflow manager failed to start
java.lang.IllegalArgumentException: stream cannot be null
	at org.drools.core.io.impl.InputStreamResource.<init>(InputStreamResource.java:44)
	at org.drools.core.io.impl.InputStreamResource.<init>(InputStreamResource.java:38)
	at org.drools.core.io.impl.ResourceFactoryServiceImpl.newInputStreamResource(ResourceFactoryServiceImpl.java:107)
	at org.kie.internal.io.ResourceFactory.newInputStreamResource(ResourceFactory.java:87)
	at info.magnolia.module.workflow.jbpm.runtime.manager.MgnlRuntimeEnvironment.loadFlows(MgnlRuntimeEnvironment.java:101)
	at info.magnolia.module.workflow.jbpm.runtime.manager.MgnlRuntimeEnvironment.init(MgnlRuntimeEnvironment.java:76)
	at info.magnolia.module.workflow.jbpm.runtime.manager.MgnlRuntimeManager.init(MgnlRuntimeManager.java:65)
	at info.magnolia.module.workflow.jbpm.JbpmWorkflowManager.startEngine(JbpmWorkflowManager.java:130)
	at info.magnolia.module.workflow.WorkflowBaseModule.start(WorkflowBaseModule.java:63)
	at info.magnolia.module.ModuleManagerImpl.startModule(ModuleManagerImpl.java:399)
	at info.magnolia.module.ModuleManagerImpl.startModules(ModuleManagerImpl.java:344)
	at info.magnolia.module.ui.ModuleManagerWebUI.onStartup(ModuleManagerWebUI.java:79)
	at info.magnolia.cms.beans.config.ConfigLoader.load(ConfigLoader.java:149)
	at info.magnolia.init.MagnoliaServletContextListener$1.doExec(MagnoliaServletContextListener.java:248)
	at info.magnolia.context.MgnlContext$VoidOp.exec(MgnlContext.java:414)
	at info.magnolia.context.MgnlContext$VoidOp.exec(MgnlContext.java:411)
	at info.magnolia.context.MgnlContext.doInSystemContext(MgnlContext.java:385)
	at info.magnolia.init.MagnoliaServletContextListener.startServer(MagnoliaServletContextListener.java:245)
	at info.magnolia.init.MagnoliaServletContextListener.contextInitialized(MagnoliaServletContextListener.java:171)
	at info.magnolia.init.MagnoliaServletContextListener.contextInitialized(MagnoliaServletContextListener.java:125)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
	at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1558)
	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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:835)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:771)
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:620)
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:567)
	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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:835)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:771)
	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1455)
	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:75)
	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1296)
	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1388)
	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:819)
	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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:303)
	at sun.rmi.transport.Transport$1.run(Transport.java:159)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
	at java.lang.Thread.run(Thread.java:695)