在jsf代码中，我使用Primefaces p：poll刷新页面，一切正常。但是，如果在打开此页面后重新启动wildfly服务器，则p：poll会抛出AbortProcessingException。
<p:poll
interval="3"
listener="#{conferencePlatformMonitors.init}"
update="@form" />
我可以用javascript替换p：poll以相同的时间间隔重新加载页面，如果在wildfly重新启动期间打开页面，则不会崩溃，
<script type="text/javascript">
setTimeout("location.reload(true);", 3000);
</script>
与JavaScript相比，我更喜欢使用p：poll。我正在使用Primefaces 6.0
这是堆栈跟踪
10:09:46,409 SEVERE [javax.enterprise.resource.webcontainer.jsf.context] (default task-8) JSF1073: javax.faces.event.AbortProcessingException caught during processing of RENDER_RESPONSE 6 : UIComponent-ClientId=, Message=java.lang.NullPointerException
10:09:46,410 SEVERE [javax.enterprise.resource.webcontainer.jsf.context] (default task-8) java.lang.NullPointerException: javax.faces.event.AbortProcessingException: java.lang.NullPointerException
at org.primefaces.context.PrimePartialResponseWriter.startMetadataIfNecessary(PrimePartialResponseWriter.java:303)
at org.primefaces.context.PrimePartialResponseWriter.redirect(PrimePartialResponseWriter.java:156)
at org.omnifaces.context.OmniPartialViewContext$OmniPartialResponseWriter.redirect(OmniPartialViewContext.java:426)
at org.omnifaces.context.OmniPartialViewContext$OmniPartialResponseWriter.startDocument(OmniPartialViewContext.java:281)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:306)
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:57)
at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:219)
at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:1004)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:432)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:134)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:659)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:81)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:265)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchToPath(ServletInitialHandler.java:200)
at io.undertow.servlet.spec.RequestDispatcherImpl.forwardImpl(RequestDispatcherImpl.java:193)
at io.undertow.servlet.spec.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:106)
at io.undertow.servlet.handlers.security.ServletFormAuthenticationMechanism.servePage(ServletFormAuthenticationMechanism.java:102)
at io.undertow.security.impl.FormAuthenticationMechanism.sendChallenge(FormAuthenticationMechanism.java:172)
at io.undertow.security.impl.SecurityContextImpl$ChallengeSender.transition(SecurityContextImpl.java:283)
at io.undertow.security.impl.SecurityContextImpl$ChallengeSender.transition(SecurityContextImpl.java:302)
at io.undertow.security.impl.SecurityContextImpl$ChallengeSender.access$300(SecurityContextImpl.java:266)
at io.undertow.security.impl.SecurityContextImpl.sendChallenges(SecurityContextImpl.java:125)
at io.undertow.security.impl.SecurityContextImpl.authTransition(SecurityContextImpl.java:99)
at io.undertow.security.impl.SecurityContextImpl.authTransition(SecurityContextImpl.java:104)
at io.undertow.security.impl.SecurityContextImpl.authenticate(SecurityContextImpl.java:89)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:55)
at io.undertow.server.handlers.DisableCacheHandler.handleRequest(DisableCacheHandler.java:33)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:51)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:56)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at org.primefaces.util.ResourceUtils.filterStylesheets(ResourceUtils.java:96)
at org.primefaces.context.PrimePartialResponseWriter.startMetadataIfNecessary(PrimePartialResponseWriter.java:287)
... 62 more