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javax.servlet.jsp.JspException: null MessageFactory	at com.sun.faces.taglib.jsf_core.SetPropertyActionListenerTag.doStartTag(SetPropertyActionListenerTag.java:155)	at org.apache.jsp.buscaPorTipoMaisVotado_jsp._jspx_meth_f_005fsetPropertyActionListener_005f0(buscaPorTipoMaisVotado_jsp.java:405)	at org.apache.jsp.buscaPorTipoMaisVotado_jsp._jspx_meth_h_005fcolumn_005f0(buscaPorTipoMaisVotado_jsp.java:342)	at org.apache.jsp.buscaPorTipoMaisVotado_jsp._jspx_meth_h_005fdataTable_005f0(buscaPorTipoMaisVotado_jsp.java:296)	at org.apache.jsp.buscaPorTipoMaisVotado_jsp._jspx_meth_h_005fpanelGrid_005f0(buscaPorTipoMaisVotado_jsp.java:248)	at org.apache.jsp.buscaPorTipoMaisVotado_jsp._jspx_meth_h_005fform_005f0(buscaPorTipoMaisVotado_jsp.java:178)	at org.apache.jsp.buscaPorTipoMaisVotado_jsp._jspx_meth_f_005fview_005f0(buscaPorTipoMaisVotado_jsp.java:131)	at org.apache.jsp.buscaPorTipoMaisVotado_jsp._jspService(buscaPorTipoMaisVotado_jsp.java:94)	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:433)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:333)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)	at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:408)	at com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:439)	at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:114)	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)	at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:304)	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)	at java.lang.Thread.run(Unknown Source)