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java.lang.NullPointerException: 	at com.sun.enterprise.container.common.impl.EntityManagerWrapper.find(EntityManagerWrapper.java:314)	at cc.skimovie.server.ejb.ServerSessionBean.getRunWithCreateNew(ServerSessionBean.java:389)	at sun.reflect.GeneratedMethodAccessor2794.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1056)	at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1128)	at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:4087)	at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5272)	at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5252)	at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:190)	at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:84)	at $Proxy509.getRunWithCreateNew(Unknown Source)	at cc.skimovie.server.ejb.__EJB31_Generated__ServerSessionBean__Intf____Bean__.getRunWithCreateNew(Unknown Source)	at cc.skimovie.server.webservice.tracker.TrackerInterface.identifySession(TrackerInterface.java:59)	at sun.reflect.GeneratedMethodAccessor2793.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1056)	at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1128)	at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5292)	at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:615)	at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:797)	at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:567)	at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:157)	at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:139)	at sun.reflect.GeneratedMethodAccessor2729.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.glassfish.webservices.InvokerImpl.invoke(InvokerImpl.java:78)	at org.glassfish.webservices.EjbInvokerImpl.invoke(EjbInvokerImpl.java:78)	at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:146)	at com.sun.xml.ws.server.sei.EndpointMethodHandler.invoke(EndpointMethodHandler.java:257)	at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:95)	at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:629)	at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:588)	at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:573)	at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:470)	at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:112)	at org.glassfish.webservices.MonitoringPipe.process(MonitoringPipe.java:138)	at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115)	at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:629)	at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:588)	at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:573)	at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:470)	at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:112)	at com.sun.xml.ws.tx.service.TxServerPipe.process(TxServerPipe.java:306)	at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115)	at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:629)	at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:588)	at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:573)	at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:470)	at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:112)	at com.sun.enterprise.security.webservices.CommonServerSecurityPipe.processRequest(CommonServerSecurityPipe.java:195)	at com.sun.enterprise.security.webservices.CommonServerSecurityPipe.process(CommonServerSecurityPipe.java:127)	at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115)	at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:629)	at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:588)	at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:573)	at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:470)	at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:295)	at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:519)	at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:288)	at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:143)	at org.glassfish.webservices.Ejb3MessageDispatcher.handlePost(Ejb3MessageDispatcher.java:116)	at org.glassfish.webservices.Ejb3MessageDispatcher.invoke(Ejb3MessageDispatcher.java:87)	at org.glassfish.webservices.EjbWebServiceServlet.dispatchToEjbEndpoint(EjbWebServiceServlet.java:196)	at org.glassfish.webservices.EjbWebServiceServlet.service(EjbWebServiceServlet.java:127)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)	at com.sun.grizzly.http.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:195)	at com.sun.grizzly.http.servlet.FilterChainImpl.invokeFilterChain(FilterChainImpl.java:139)	at com.sun.grizzly.http.servlet.ServletAdapter.doService(ServletAdapter.java:376)	at com.sun.grizzly.http.servlet.ServletAdapter.service(ServletAdapter.java:329)	at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:166)	at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:100)	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:245)	at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)	at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)	at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)	at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)	at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)	at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)	at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)	at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)	at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)	at com.sun.grizzly.ContextTask.run(ContextTask.java:69)	at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)	at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)	at java.lang.Thread.run(Thread.java:662)