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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.apache.myfaces.context.servlet.ServletExternalContextImpl.redirect(ServletExternalContextImpl.java:493) at javax.faces.context.ExternalContextWrapper.redirect(ExternalContextWrapper.java:386) at org.apache.myfaces.application.NavigationHandlerImpl.handleNavigation(NavigationHandlerImpl.java:235) at org.apache.myfaces.application.NavigationHandlerImpl.handleNavigation(NavigationHandlerImpl.java:122) at org.primefaces.application.DialogNavigationHandler.handleNavigation(DialogNavigationHandler.java:100)