Bom dia pessoal.. Estou utilizando o seguinte metodo para mostrar mensagens para o usuario. public static void severityFatal(final String summary){ FacesContext.getCurrentInstance().addMessage(null, new FacesMe…

Você está chamando a mensagem através de um rich:messages ? Talvez você tenha ele (rich:messages) na sua página e também no modal e caso ambos estejam no mesmo FORM isso realmente poderá ocorrer! Verifique…

FacesMessages mostra mensagem duplicada

Bom dia mrbbm…
Eu verifiquei isso e acho que nao é esse problema… Olha o codigo ai cara…
Esse é o modal que abre com as mensagens

<?xml version="1.0" encoding="ISO-8859-1"?>
<rich:modalPanel id="_messagesPanel"
	showWhenRendered="#{not empty facesContext.maximumSeverity}"
	autosized="true" width="250" height="130" moveable="true" xml:lang="pt-br" lang="pt-br"
	xmlns="http://www.w3.org/1999/xhtml"
	xmlns:ui="http://java.sun.com/jsf/facelets"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:rich="http://richfaces.org/rich"
	xmlns:a4j="http://richfaces.org/a4j">

	<f:facet name="header">
		<h:panelGroup style="margin-right: 15px;">
			<h:outputText value="Mensagens" />			
		</h:panelGroup>
	</f:facet>
	<f:facet name="controls">
		<h:panelGroup>
				<h:graphicImage value="/images/close.png" id="hidelink"
					title="Close" />
				<rich:componentControl for="_messagesPanel" attachTo="hidelink"
					operation="hide" event="onclick" />
			</h:panelGroup>
	</f:facet>
	<h:form>
		<rich:messages tooltip="true" style="white-space: pre;">
			<f:facet name="passedMarker">
				<h:graphicImage url="./images/sucesso.png"
					style="margin-right:5px; position: relative; top: 1px;" />
			</f:facet>
			<f:facet name="errorMarker">
				<h:graphicImage url="./images/erro.png"
					style="margin-right:5px; position: relative; top: 1px;" />
			</f:facet>
			<f:facet name="fatalMarker">
				<h:graphicImage url="./images/erro.png"
					style="margin-right:5px; position: relative; top: 1px;" />
			</f:facet>			
		</rich:messages>
		<rich:spacer width="100%" height="20"/>
		<h:panelGrid style="text-align:center; margin: 0 auto; width: 100%;">
			<a4j:commandButton value="Fechar" id="_fecharButton"
				onclick="Richfaces.hideModalPanel('_messagesPanel');" ajaxSingle="true" />
		</h:panelGrid>		
	</h:form>
</rich:modalPanel>

Na pagina que aparece duplicada a mensagem o codigo fica assim…

<ui:composition template="template.xhtml">
	<ui:define name="conteudo">
		<rich:panel header="Configuração" rendered="#{baseMB.verifyHandHeld}">
			<h:form id="frmAssociarUsers">
				<rich:toolBar itemSeparator="line" height="26">
					<rich:toolBarGroup>
						<a4j:commandLink id="linkNovo" title="Novo"
							action="#{pesquisaPessoa.destroy}" reRender="panelPessoa"
							oncomplete="Richfaces.showModalPanel('panelPessoa')">
							<h:graphicImage id="image1" url="/images/page_white.png"
								style="border:0; height: 17px;" />
						</a4j:commandLink>
					</rich:toolBarGroup>
				</rich:toolBar>
				<rich:spacer width="100%" height="15" />
				
				<rich:dataTable rows="20" id="dtUsuColetor" width="99%"
					value="#{usuariosAssociadosMB.dtModel}" var="dt"
					style="text-align:center; font-family:verdana; font-size:11px"
					reRender="ds">
					<f:facet name="header">
						<rich:columnGroup>
							<rich:column colspan="3">
								<h:outputText value="Associar Usuário ao Coletor" />
							</rich:column>
							<rich:column breakBefore="true">
								<h:outputText value="Usuário" />
							</rich:column>
							<rich:column>
								<h:outputText value="Senha" />
							</rich:column>
							<rich:column>
								<h:outputText value="Controles" />
							</rich:column>
						</rich:columnGroup>
					</f:facet>
					<rich:column>
						<h:outputText value="#{dt.user}" />
					</rich:column>
					<rich:column>
						<h:outputText value="#{dt.pwd}">
							<f:converter converterId="passwordConvert" />
						</h:outputText>
					</rich:column>
					<rich:column>
						<a4j:commandLink id="editar" title="Editar"
							action="#{usuariosAssociadosMB.edit}"
							reRender="modalEditSenhaUserColetor"
							oncomplete="Richfaces.showModalPanel('modalEditSenhaUserColetor')">
							<h:graphicImage id="imageEdit" url="/images/editar.png"
								style="border:0" />
						</a4j:commandLink>
						<rich:spacer width="7" />
						<h:commandLink id="excluir" title="Excluir"
							onclick="javascript:return confirm('Deseja realmente excluir esse registro?');"
							immediate="true" action="#{usuariosAssociadosMB.remove}">
							<h:graphicImage id="imageExcluir" url="/images/delete.png"
								style="border:0" />
						</h:commandLink>
					</rich:column>
					<f:facet name="footer">
						<rich:datascroller id="ds" renderIfSinglePage="false"></rich:datascroller>
					</f:facet>
				</rich:dataTable>
			</h:form>
		</rich:panel>
//----------ESTE É O MODAL DE ERRO------------------....
		<f:subview id="modalErrorAssUser">
			<a4j:include viewId="modalError.xhtml" />
		</f:subview>

		<f:subview id="modal">
			<a4j:include viewId="modalEditUserColetor.xhtml" />
		</f:subview>

		<ui:include src="/pesquisas/pesqPessoa.xhtml">
			<ui:param name="beanObserver" value="#{pesquisaPessoaMB}" />
		</ui:include>
	</ui:define>
</ui:composition>

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