NullPointerException if user quikcly decides to click a different link or button before the page renders -------------------------------------------------------------------------------------------------------- Key: JBSEAM-335 URL: http://jira.jboss.com/jira/browse/JBSEAM-335 Project: JBoss Seam Issue Type: Bug Components: JSF Environment: Seam 1.0.1.GA. JBoss 4.0.4, Windows XP, Facelets, MyFaces, Hibernate Reporter: Keith Naas Assigned To: Gavin King Priority: Critical Fix For: 1.1.0.BETA1 When a user is on one of our screens, they can decide to click a link before the next page loads. Sometimes, when this do this quickly enough, it causes a NullPointerException in Manager.touchConversationStack at line 181. Somehow, the currentConversationEntry is null and it breaks when it executes getCurrentConversationEntry().touch(). I tried unsuccessfully to duplicate this scenario on the Hotel and DVD Store demos hosted on JBoss. Stack Trace java.lang.NullPointerException at org.jboss.seam.core.Manager.touchConversationStack(Manager.java:181) at org.jboss.seam.core.Manager.storeConversation(Manager.java:368) at org.jboss.seam.jsf.AbstractSeamPhaseListener.storeAnyConversationContext(AbstractSeamPhaseListener.java:69) at org.jboss.seam.jsf.SeamStateManager.saveSerializedView(SeamStateManager.java:45) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:578) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) .....