I'm new to Seam, and trying to port (and enhance) a web app I had running previously using just Facelets and JSF. I keep running into problems that turn out to be due to parts of the XHTML file that are commented out, like this:

<!--<h:commandButton type="submit" id="deleteTerritory"
                      styleClass="standardButton"
            action="#{maintainLists.deleteTerritory}"
            value="Delete"
    />-->

Without the comments, this works fine. But when it's commented out, I get this:

javax.el.PropertyNotFoundException: Bean: com.myApplication.backingBeans.MaintainListsI$$EnhancerByCGLIB$$b402781f, property: deleteTerritory
 at com.sun.facelets.el.LegacyELContext$LegacyELResolver.getValue(LegacyELContext.java:146)
 at com.sun.el.parser.AstValue.getValue (AstValue.java:117)
 at com.sun.el.ValueExpressionImpl.getValue (ValueExpressionImpl.java:192)
 at com.sun.facelets.el.ELText$ELTextVariable.toString(ELText.java:174)
 at com.sun.facelets.el.ELText$ELTextComposite.toString(ELText.java:115)
 at com.sun.facelets.compiler.CommentInstruction.write (CommentInstruction.java:38)
 at com.sun.facelets.compiler.UIInstructions.encodeBegin (UIInstructions.java:39)
 at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive (ComponentSupport.java:232)
 at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive (ComponentSupport.java:239)
 at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive (ComponentSupport.java:239)
 at com.sun.facelets.FaceletViewHandler.renderView (FaceletViewHandler.java:580)
 at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
 at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:229)
 at org.apache.myfaces.lifecycle.LifecycleImpl.render (LifecycleImpl.java:384)
 at javax.faces.webapp.FacesServlet.service (FacesServlet.java:138)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:269)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:188)
 at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:96)
 at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:220)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:215)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:188)
 at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:63)
 at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
 at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
 at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
 at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
 at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:79)
 at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
 at org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:215)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:188)
 at org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:210)
 at org.apache.catalina.core.StandardContextValve.invoke (StandardContextValve.java:174)
 at org.apache.catalina.core.StandardHostValve.invoke (StandardHostValve.java:127)
 at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:117)
 at org.apache.catalina.core.StandardEngineValve.invoke (StandardEngineValve.java:108)
 at org.apache.catalina.connector.CoyoteAdapter.service (CoyoteAdapter.java:151)
 at org.apache.coyote.http11.Http11Processor.process (Http11Processor.java:870)
 at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket (PoolTcpEndpoint.java:528)
 at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt (LeaderFollowerWorkerThread.java:81)
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
 at java.lang.Thread.run (Thread.java:595)

This is odd for two reasons: first the "property" (actually an action method) does exist in the backing bean, as evidenced by the fact that this works fine when I remove the comments. And second, since this markup is commented out, why is there even an attempt to access that method?

Since this works fine until I put Seam in the mix, it seems that this effect must be Seam-related. Any ideas what's going on here?

Steve Gollery


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