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I'm retrieving this exception when I open a JSF page. How is this caused and how can I fix it?
org.apache.jasper.JasperException: An exception occurred processing JSP page /searchResultJSF.jsp at line 18
15: <body>
16: <h1>SEARCH RESULT</h1>
17:
18: <h:dataTable id ="abc" value="#{SearchBean.dealerList}" var="dealer">
19: <h:column>
20: <f:facet name="header" >
21: <h:outputText value="Dealer name "/>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:408)
com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:442)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:115)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
root cause
javax.servlet.ServletException: javax.servlet.jsp.JspException: java.lang.IllegalStateException: Component javax.faces.component.UIViewRoot@19ded20 not expected type. Expected: javax.faces.component.UIData. Perhaps you're missing a tag?
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:858)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
org.apache.jsp.searchResultJSF_jsp._jspService(searchResultJSF_jsp.java:94)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:408)
com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:442)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:115)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
root cause
java.lang.IllegalStateException: Component javax.faces.component.UIViewRoot@19ded20 not expected type. Expected: javax.faces.component.UIData. Perhaps you're missing a tag?
com.sun.faces.taglib.html_basic.DataTableTag.setProperties(DataTableTag.java:265)
javax.faces.webapp.UIComponentClassicTagBase.findComponent(UIComponentClassicTagBase.java:604)
javax.faces.webapp.UIComponentClassicTagBase.doStartTag(UIComponentClassicTagBase.java:1126)
com.sun.faces.taglib.html_basic.DataTableTag.doStartTag(DataTableTag.java:372)
org.apache.jsp.searchResultJSF_jsp._jspx_meth_h_005fdataTable_005f0(searchResultJSF_jsp.java:117)
org.apache.jsp.searchResultJSF_jsp._jspService(searchResultJSF_jsp.java:84)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:408)
com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:442)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:115)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
715
This is the important bit:
javax.servlet.ServletException: javax.servlet.jsp.JspException: java.lang.IllegalStateException: Component javax.faces.component.UIViewRoot@19ded20 not expected type. Expected: javax.faces.component.UIData. Perhaps you're missing a tag?
You forgot to wrap the page with JSF tags within <f:view>. Your page has to look like this:
<%@taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<!DOCTYPE html>
<f:view>
<html lang="en">
<head>
<title>Insert title here</title>
</head>
<body>
Insert content here
</body>
</html>
</f:view>
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