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java.lang.UnsupportedOperationException: 	at javax.faces.application.Application.getExpressionFactory(Application.java:746)	at com.icesoft.faces.webapp.parser.ELSetPropertiesRule.getValueExpression(ELSetPropertiesRule.java:144)	at com.icesoft.faces.webapp.parser.ELSetPropertiesRule.begin(ELSetPropertiesRule.java:89)	at org.apache.commons.digester.Rule.begin(Rule.java:175)	at org.apache.commons.digester.Digester.startElement(Digester.java:1453)	at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)	at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(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:125)	at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:508)	at com.icesoft.faces.application.D2DViewHandler.renderView(D2DViewHandler.java:161)	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)	at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)	at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:18)	at com.icesoft.faces.webapp.http.core.PageServer$1.respond(PageServer.java:25)	at com.icesoft.faces.webapp.http.servlet.ServletRequestResponse.respondWith(ServletRequestResponse.java:161)	at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet$ThreadBlockingRequestResponse.respondWith(ThreadBlockingAdaptingServlet.java:36)	at com.icesoft.faces.webapp.http.core.PageServer.service(PageServer.java:30)	at com.icesoft.faces.webapp.http.core.MultiViewServer.service(MultiViewServer.java:56)	at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer$Matcher.serviceOnMatch(PathDispatcherServer.java:50)	at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:19)	at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet.service(ThreadBlockingAdaptingServlet.java:19)	at com.icesoft.faces.webapp.http.servlet.EnvironmentAdaptingServlet.service(EnvironmentAdaptingServlet.java:63)	at com.icesoft.faces.webapp.http.servlet.MainSessionBoundServlet.service(MainSessionBoundServlet.java:139)	at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:53)	at com.icesoft.faces.webapp.http.servlet.PathDispatcher$Matcher.serviceOnMatch(PathDispatcher.java:52)	at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:29)	at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:82)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:711)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:368)	at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:866)	at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:448)	at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:302)	at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:190)	at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)	at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)	at java.lang.Thread.run(Thread.java:595)