Exception with ICEFaces

Question

Hello,

I'm using ICEFaces. I have datatable with multiple columns. One I load the page I get the following exception; however, the page still loads and contiues correctly but after I start pagination the table it's slow, I'm not sure what this exception is about as the page still work and I'm not sure if it's related to the slowness of pagination.

Any ideas?

THanks,

Tam

The Excpetion:

15:27:49,254 ERROR [Digester] Parse Fatal Error at line 1 column 1: Content is not allowed in prolog.
org.xml.sax.SAXParseException: Content is not allowed in prolog.
    at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
    at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
    at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
    at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
    at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
    at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source)
    at org.apache.xerces.impl.XMLDocumentScannerImpl$PrologDispatcher.dispatch(Unknown Source)
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
    at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
    at org.apache.commons.digester.Digester.parse(Digester.java:1765)
    at com.icesoft.faces.webapp.parser.TagToComponentMap.addTags(TagToComponentMap.java:145)
    at com.icesoft.faces.webapp.parser.JsfJspDigester.startPrefixMapping(JsfJspDigester.java:126)
    at org.apache.xerces.parsers.AbstractSAXParser.startNamespaceMapping(Unknown Source)
    at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
    at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
    at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
    at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
    at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
    at org.apache.commons.digester.Digester.parse(Digester.java:1785)
    at com.icesoft.faces.webapp.parser.Parser.parse(Parser.java:130)
    at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:464)
    at com.icesoft.faces.application.D2DViewHandler.renderView(D2DViewHandler.java:153)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
    at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:19)
    at com.icesoft.faces.context.View$2$1.respond(View.java:48)
    at com.icesoft.faces.webapp.http.servlet.ServletRequestResponse.respondWith(ServletRequestResponse.java:201)
    at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet$ThreadBlockingRequestResponse.respondWith(ThreadBlockingAdaptingServlet.java:36)
    at com.icesoft.faces.context.View$2.serve(View.java:76)
    at com.icesoft.faces.context.View.servePage(View.java:139)
    at com.icesoft.faces.webapp.http.core.SingleViewServer.service(SingleViewServer.java:52)
    at com.icesoft.faces.webapp.http.common.ServerProxy.service(ServerProxy.java:11)
    at com.icesoft.faces.webapp.http.servlet.MainSessionBoundServlet$4.service(MainSessionBoundServlet.java:114)
    at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:24)
    at com.icesoft.faces.webapp.http.servlet.MainSessionBoundServlet.service(MainSessionBoundServlet.java:160)
    at com.icesoft.faces.webapp.http.servlet.SessionDispatcher$1.service(SessionDispatcher.java:42)
    at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet.service(ThreadBlockingAdaptingServlet.java:19)
    at com.icesoft.faces.webapp.http.servlet.EnvironmentAdaptingServlet.service(EnvironmentAdaptingServlet.java:63)
    at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:62)
    at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)
    at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:153)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
    at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
    at java.lang.Thread.run(Thread.java:595)

Answer 1

It's going to be difficult to diagnose anything without seeing any code, but it looks like this has been covered before in other places. Have you at least tried Google'ing that error? Here is a definition of the error you're seeing from this message board thread:

This means you have something before the root element which is not permitted to appear there according to the XML spec. Make sure that NOTHING comes before the XML declaration except the optional byte-order mark, and that NOTHING comes between the XML declaration and the outermost element except comments, processing instructions, and whitespace.

Hope that helps.

Answer 2

Might be a JSP problem. You need to provide more information. You're also better off asking the ICEFaces forum.

Answer 3

Could be a simple syntax problem if you use Facelets. The XML parser (Xerces) tells you that there are parts in the page that are not allowed. This can be the cause for the behavior.

But, as mentioned above, we need a detailled look at the page markup.