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java.lang.NullPointerException: 	at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768)	at org.hibernate.impl.SessionFactoryObjectFactory.getNamedInstance(SessionFactoryObjectFactory.java:159)	at org.hibernate.impl.SessionFactoryImpl.readResolve(SessionFactoryImpl.java:753)	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 java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1056)	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1761)	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.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.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.defaultReadFields(ObjectInputStream.java:1946)	at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:479)	at net.sf.ehcache.Element.readObject(Element.java:800)	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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:969)	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)	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 sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:306)	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:288)	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:886)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)	at java.lang.Thread.run(Thread.java:680)	at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)	at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)	at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)	at net.sf.ehcache.distribution.RMICachePeer_Stub.put(Unknown Source)	at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicatePutNotification(RMISynchronousCacheReplicator.java:149)	at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.notifyElementPut(RMISynchronousCacheReplicator.java:132)	at net.sf.ehcache.event.RegisteredEventListeners.notifyElementPut(RegisteredEventListeners.java:100)	at net.sf.ehcache.Cache.notifyPutInternalListeners(Cache.java:1446)	at net.sf.ehcache.Cache.putInternal(Cache.java:1438)	at net.sf.ehcache.Cache.put(Cache.java:1367)	at net.sf.ehcache.Cache.put(Cache.java:1339)	at net.sf.ehcache.hibernate.regions.EhcacheTransactionalDataRegion.put(EhcacheTransactionalDataRegion.java:127)	at net.sf.ehcache.hibernate.strategy.AbstractReadWriteEhcacheAccessStrategy.putFromLoad(AbstractReadWriteEhcacheAccessStrategy.java:93)	at net.sf.ehcache.hibernate.nonstop.NonstopAwareEntityRegionAccessStrategy.putFromLoad(NonstopAwareEntityRegionAccessStrategy.java:180)	at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:195)	at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:982)	at org.hibernate.loader.Loader.doQuery(Loader.java:857)	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)	at org.hibernate.loader.Loader.loadEntity(Loader.java:2037)	at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:86)	at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:76)	at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:69)	at org.hibernate.loader.entity.BatchingEntityLoader.load(BatchingEntityLoader.java:113)	at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3293)	at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:496)	at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:477)	at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:227)	at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:285)	at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152)	at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:1090)	at org.hibernate.impl.SessionImpl.get(SessionImpl.java:1005)	at org.hibernate.impl.SessionImpl.get(SessionImpl.java:998)	at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:614)	at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:589)	at com.espn.test.Producer.getTS(Producer.java:130)	at com.espn.test.Producer.main(Producer.java:34)