JSF2 javax.el.PropertyNotFoundException property not found on type

[vicky yar]

Hy I am using

- JSF 2.0
- JDK 7
- Linux - Ubuntu 13.04
- Primefaces 4

and the problem is that I am facing **javax.el.PropertyNotFoundException** I have tried/searched everything I could from forums/help-sections/etc, but I am not able to understand where I am going wrong kindly guide. Below are my Exception Details

    javax.el.PropertyNotFoundException: section-panel.xhtml @99,91 rendered="#{sectionBean.editable}": Property 'editable' not found on type com.example.timeline.backingbeans.SectionBackingBean
    	at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:111)
    	at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:193)
    	at javax.faces.component.UIComponentBase.isRendered(UIComponentBase.java:422)
    	at javax.faces.component.UIData.iterate(UIData.java:1495)
    	at javax.faces.component.UIData.processDecodes(UIData.java:983)
    	at javax.faces.component.UIForm.processDecodes(UIForm.java:216)
    	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
    	at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:926)
    	at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
    	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
    	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:508)
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
    	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    	at java.lang.Thread.run(Thread.java:744)

my web page

<!-- language: lang-xhtml -->

    <h:dataTable styleClass="table table-striped" var="sectionBean" 
    	value="#{sectionBackingBean.listSectionDTO}" rendered="#{sectionBackingBean.visible}">
    	<h:column>
    		<f:facet name="header">
    			<h:outputText value="Section Id" />
    		</f:facet>
    		<h:outputText value="#{sectionBean.sectionId}" />
    	</h:column>
    
    	<h:column>
    		<f:facet name="header">
    			<h:outputText value="Name" />
    		</f:facet>
    <!-- 									<h:outputText value="#{sectionBean.name}" />
    		<h:inputText value="#{sectionBean.name}" /> -->
    		<h:outputText value="#{sectionBean.name}" rendered="#{sectionBean.editable}"/>
    		<h:inputText value="#{sectionBean.name}" rendered="#{sectionBean.editable}"/>
    	</h:column>
    	
    	<h:column>
    		<f:facet name="header">
    			<h:outputText value="Modify" />
    		</f:facet>
    		
    		<h:commandLink value="Update" />
    		<h:outputLabel value="  " />
    		<h:commandLink value="Delete" />
    	</h:column>
    	
    </h:dataTable>

my backing bean is

    package com.example.timeline.backingbeans;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import javax.faces.component.UICommand;
    import javax.faces.component.UIInput;
    
    import com.example.timeline.controller.ControllerMapsOperations;
    import com.example.timeline.dto.SectionDTO;
    import com.example.timeline.dto.StatusDTO;
    import com.example.timeline.utils.GCTimlineConstants;
    
    public class SectionBackingBean extends SectionDTO {
    
    	private final static String _FORM_ADD_SECTION = "form-add-section";
    
    	private StatusBackingBean statusBackingBean;
    	private UICommand commandLink;
    	private UIInput inputText;
    	private ControllerMapsOperations controllerMapsOperations = null;
    	private List<SectionBackingBean> listSectionDTO = null;
    	private boolean isVisible;
    	private boolean editable;
    	
    	
    	
    	public boolean isEditable() {
    		return editable;
    	}
    
    	public void setEditable(boolean editable) {
    		this.editable = editable;
    	}
    
    	public UIInput getInputText() {
    		return inputText;
    	}
    
    	public void setInputText(UIInput inputText) {
    		this.inputText = inputText;
    	}
    
    	public SectionBackingBean() {
    		// super();
    		listSectionDTO = new ArrayList<>();
    		super.setStatusDTO(new StatusDTO());
    		statusBackingBean = new StatusBackingBean();
    		controllerMapsOperations = new ControllerMapsOperations();
    	}
    
    	public List<SectionBackingBean> getListSectionDTO() {
    		return listSectionDTO = controllerMapsOperations.getAllSections();
    	}
    
    	public void setListSectionDTO(List<SectionBackingBean> listSectionDTO) {
    		this.listSectionDTO = listSectionDTO;
    	}
    
    	public StatusBackingBean getStatusBackingBean() {
    		return statusBackingBean;
    	}
    
    	public void setStatusBackingBean(StatusBackingBean statusBackingBean) {
    		this.statusBackingBean = statusBackingBean;
    	}
    
    	public void setControllerMapsOperations(
    			ControllerMapsOperations controllerMapsOperations) {
    		this.controllerMapsOperations = controllerMapsOperations;
    	}
    
    	public UICommand getCommandLink() {
    		return commandLink;
    	}
    
    	public void setCommandLink(UICommand commandLink) {
    		this.commandLink = commandLink;
    	}
    
    	public boolean isVisible() {
    		return isVisible;
    	}
    
    	@SuppressWarnings("deprecation")
    	public String setVisible(boolean isVisible) {
    		this.isVisible = isVisible;
    		if (this.isVisible == Boolean.TRUE) {
    			// MethodBinding mb =
    			// FacesContext.getCurrentInstance().getApplication().createMethodBinding("#{sectionBackingBean.setVisible(false)}",
    			// new Class[0]);
    			// commandLink.setValue("Hide Section");
    			// commandLink.setAction(mb);
    			// commandLink.setRendered(true);
    		}
    		return null;
    	}
    
    	public ControllerMapsOperations getControllerMapsOperations() {
    		return controllerMapsOperations;
    	}
    
    	public List<SectionBackingBean> selectAllSectionDetails() {
    		return controllerMapsOperations.getAllSections();
    	}
    
    	public String navigate() {
    		return "add-section";
    	}
    
    	public String addSection() {
    		if ((getName() == null) || getName().equalsIgnoreCase("")) {
    			GCTimlineConstants.getErrorMessage(_FORM_ADD_SECTION,
    					"Can't leave fields empty!");
    			return "failure";
    		} else {
    			ControllerMapsOperations controllerMapsOperations = new ControllerMapsOperations();
    			try {
    				if (controllerMapsOperations.addSection(this.getName(), this
    						.getStatusDTO().getStatusId()) == Boolean.TRUE) {
    					GCTimlineConstants.getInfoMessage(_FORM_ADD_SECTION,
    							"Section added successfully!");
    					inputText.setValue("");
    					return "success";
    				} else {
    					GCTimlineConstants.getErrorMessage(_FORM_ADD_SECTION,
    							"Can't add. Try later!");
    					return "failure";
    				}
    			} catch (Exception ex) {
    				GCTimlineConstants.getErrorMessage(_FORM_ADD_SECTION,
    						ex.getMessage());
    				return "failure";
    
    			}
    		}
    	}
    	
    	
    //	public String updateAction(SectionBackingBean sectionBackingBean){
    //		sectionBackingBean.setEditable(Boolean.TRUE);
    //		return null;
    //	}
    }

my faces-config.xml

<!-- language: lang-xml -->

    <?xml version="1.0" encoding="UTF-8"?>
    
    <faces-config xmlns="http://java.sun.com/xml/ns/javaee"
    	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd"
    	version="2.0">
    
    	<managed-bean>
    		<managed-bean-name>sectionBackingBean</managed-bean-name>
    		<managed-bean-class>com.example.timeline.backingbeans.SectionBackingBean</managed-bean-class>
    		<managed-bean-scope>session</managed-bean-scope>
    	</managed-bean>
    
    
    	<managed-bean>
    		<managed-bean-name>loginBackingBean</managed-bean-name>
    		<managed-bean-class>com.example.timeline.backingbeans.LoginBackingBean</managed-bean-class>
    		<man
aged-bean-scope>session</managed-bean-scope>
    	</managed-bean>
    
    </faces-config>

[Tim Holloway]

Because you've overlaid the session-scope variable "sectionBean" with a table "var" index that is also named "sectionBean", which hides the original object and its properties.

I usually name my row index variable something clever like "row" or "item" or something like that.

The presence of a login bean in your app tells me it's almost certainly a security breach waiting to happen, too, but that's another story.