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java.lang.NullPointerException: 	at br.gov.jfrj.siga.vraptor.ExDocumentoController.arquivamentoAutomatico(ExDocumentoController.java:796)	at br.gov.jfrj.siga.vraptor.ExDocumentoController.assertAcesso(ExDocumentoController.java:763)	at br.gov.jfrj.siga.vraptor.ExDocumentoController.exibe(ExDocumentoController.java:973)	at sun.reflect.GeneratedMethodAccessor2205.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:61)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.interceptor.ParametersInstantiatorInterceptor.intercept(ParametersInstantiatorInterceptor.java:96)	at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:59)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:67)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:56)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.interceptor.InstantiateInterceptor.intercept(InstantiateInterceptor.java:48)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.gov.jfrj.siga.vraptor.AplicacaoExceptionInterceptor.intercept(AplicacaoExceptionInterceptor.java:39)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:56)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.util.jpa.JPATransactionInterceptor.intercept(JPATransactionInterceptor.java:54)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.gov.jfrj.siga.vraptor.CacheControlInterceptor.intercept(CacheControlInterceptor.java:44)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:69)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)	at br.com.caelum.vraptor.core.EnhancedRequestExecution.execute(EnhancedRequestExecution.java:44)	at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:95)	at br.com.caelum.vraptor.ioc.guice.GuiceProvider.provideForRequest(GuiceProvider.java:82)	at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:101)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)	at br.gov.jfrj.siga.hibernate.ExThreadFilter.executaFiltro(ExThreadFilter.java:94)	at br.gov.jfrj.siga.hibernate.ExThreadFilter.doFiltro(ExThreadFilter.java:60)	at br.gov.jfrj.siga.base.auditoria.filter.ThreadFilter.doFilter(ThreadFilter.java:190)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)	at br.gov.jfrj.siga.base.log.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:25)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149)	at org.jboss.modcluster.container.jbossweb.JBossWebContext$RequestListenerValve.event(JBossWebContext.java:91)	at org.jboss.modcluster.container.jbossweb.JBossWebContext$RequestListenerValve.invoke(JBossWebContext.java:72)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:512)	at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653)	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926)	at java.lang.Thread.run(Thread.java:745)