The following cryptic Exception may be observed:

java.lang.UnsupportedOperationException: createTemporaryDOMResponseWriter not implemented
at com.icesoft.faces.context.DOMContext.createTemporaryDOMResponseWriter(DOMContext.java:197)
at com.icesoft.faces.context.DOMContext.attachDOMContext(DOMContext.java:92)
at com.icesoft.faces.renderkit.dom_html_basic.FormRenderer.encodeBegin(FormRenderer.java:66)
at com.icesoft.faces.component.ext.renderkit.FormRenderer.encodeBegin(FormRenderer.java:42)
at org.icefaces.impl.renderkit.RendererWrapper.encodeBegin(RendererWrapper.java:50)
at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:824)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1641)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1646)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1646)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:389)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:127)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:117)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:135)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:309)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:717)