[jboss-user] [JBoss Seam] - Component property class is not writable

[lowecg2004]

Hi All,

I'm getting the following exception when I add a class attribute to s:link

java.lang.IllegalArgumentException: Component property class is not writable
  | 	at javax.faces.component._ComponentAttributesMap.setComponentProperty(_ComponentAttributesMap.java:407)
  | 	at javax.faces.component._ComponentAttributesMap.put(_ComponentAttributesMap.java:309)
  | 	at com.sun.facelets.tag.jsf.ComponentRule$LiteralAttributeMetadata.applyMetadata(ComponentRule.java:49)
  | 	at com.sun.facelets.tag.MetadataImpl.applyMetadata(MetadataImpl.java:36)
  | 	at com.sun.facelets.tag.MetaTagHandler.setAttributes(MetaTagHandler.java:62)
  | 	at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:140)
  | 	at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
  | 	at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:295)
  | 	at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:165)
  | 	at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
  | 	at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49)
  | 	at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
  | 	at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25)
  | 	at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:248)
  | 	at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:294)
  | 	at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:273)
  | 	at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:143)
  | 	at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:113)
  | 	at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49)
  | 	at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25)
  | 	at com.sun.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:95)
  | 	at com.sun.facelets.FaceletViewHandler.buildView(FaceletViewHandler.java:510)
  | 	at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:553)
  | 	at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:178)
  | 	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)
  | 	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._invokeDoFilter(TrinidadFilterImpl.java:326)
  | 	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:290)
  | 	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:213)
  | 	at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:90)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:46)
  | 	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.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)

If I remove the class attribute from the s:link then all is well, so clearly this is causing the problem.

Can s:link be modified to allow use of the class attribute?  Or is there a good reason for it not being allowed?

Regards,

Chris.


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