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ava.lang.IllegalStateException: 	at org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:392)	at javax.servlet.http.HttpServletResponseWrapper.sendError(HttpServletResponseWrapper.java:152)	at org.apache.catalina.servlets.DefaultServlet.serveResource(DefaultServlet.java:679)	at org.apache.catalina.servlets.DefaultServlet.doGet(DefaultServlet.java:363)	at org.apache.catalina.servlets.DefaultServlet.doPost(DefaultServlet.java:399)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)	at br.com.caelum.vraptor.resource.DefaultResourceNotFoundHandler.couldntFind(DefaultResourceNotFoundHandler.java:41)	at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:71)	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$1.insideRequest(VRaptor.java:95)	at br.com.caelum.vraptor.ioc.guice.GuiceProvider.provideForRequest(GuiceProvider.java:82)	at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:101)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)	at br.gov.jfrj.siga.base.log.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:25)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149)	at org.jboss.modcluster.container.jbossweb.JBossWebContext$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)