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http://jira.jboss.com/jira/browse/JBSEAM-1231?page=comments#action_12360851 ]
Alan Fehr commented on JBSEAM-1231:
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No, I want exactly the contrary. I want to "clear" the parameter. This is useful
for generating new entities (setting the id on the home to null) with the style of pages
that are generated by seam-gen. It works fine when done in an s:link.
Cannot pass empty parameters in *.page.xml
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Key: JBSEAM-1231
URL:
http://jira.jboss.com/jira/browse/JBSEAM-1231
Project: JBoss Seam
Issue Type: Bug
Affects Versions: 1.2.1.GA
Reporter: Alan Fehr
Assigned To: Pete Muir
Priority: Minor
When passing an empty parameter in a redirect in a *.page.xml, I get a
NullPointerException. Empty parameters work when used on pages (with s:link and
<f:param name="paramName" />) but when used as mentioned I get:
2007-04-23 16:31:13,437 ERROR
[org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/zdb].[Faces Servlet]]
Servlet.service() for servlet Faces Servlet threw exception
java.lang.NullPointerException
at org.jboss.seam.pages.Param.getValueFromModel(Param.java:93)
at
org.jboss.seam.pages.RedirectNavigationHandler.navigate(RedirectNavigationHandler.java:36)
at org.jboss.seam.pages.Rule.execute(Rule.java:91)
at org.jboss.seam.pages.Navigation.navigate(Navigation.java:65)
at org.jboss.seam.core.Pages.navigate(Pages.java:131)
at
org.jboss.seam.jsf.SeamNavigationHandler.handleNavigation(SeamNavigationHandler.java:32)
at
org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:84)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:94)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:168)
at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:343)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:619)
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