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java.lang.NullPointerException: 	at java.util.concurrent.FutureTask.(FutureTask.java:134)	at com.somecompany.eps.producer.AbstractProducer$2.(AbstractProducer.java:154)	at com.somecompany.eps.producer.AbstractProducer.execute(AbstractProducer.java:153)	at com.somecompany.eps.producer.ControllableProducer.messageReceived(ControllableProducer.java:536)	at com.somecompany.eps.producer.ControllableProducer.newTask(ControllableProducer.java:293)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:75)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:279)	at javax.management.modelmbean.RequiredModelMBean$4.run(RequiredModelMBean.java:1245)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)	at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1239)	at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:1077)	at org.springframework.jmx.export.SpringModelMBean.invoke(SpringModelMBean.java:90)	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1487)	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:97)	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1328)	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1420)	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:848)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:322)	at sun.rmi.transport.Transport$1.run(Transport.java:177)	at sun.rmi.transport.Transport$1.run(Transport.java:174)	at java.security.AccessController.doPrivileged(Native Method)	at sun.rmi.transport.Transport.serviceCall(Transport.java:173)	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:556)	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:811)	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:670)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:724)