problem with <h:selectOneMenu component --- javax.el.PropertyNotFoundException:

[Giannis nasdades]

Hi all,

I have made a simple seam application.

I am trying to create a selectOneMenu which takes the values from a list from a specified action but i keep getting the error:

javax.el.PropertyNotFoundException: /motorcycleSearchAction.xhtml @21,50 value="#{motorcycleService.categories}": Property 'categories' not found on type org.javassist.tmp.java.lang.Object_$$_javassist_5

My code is as follows:

the java page with the action etc is:

 

package com.advert.sbeans;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.ejb.Remove;
import javax.ejb.Stateful;
import javax.faces.model.SelectItem;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import com.advert.ebeans.Motorcycle;
import com.advert.ebeans.Motorcyclecateg;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.Destroy;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.datamodel.DataModel;
import org.jboss.seam.annotations.security.Restrict;

@Stateful
@Name("motorcycleService")
@Scope(ScopeType.SESSION)
//@Restrict("#{identity.loggedIn}")
public class MotorcycleActionImpl implements MotorcycleAction/*, Serializable*/{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private String searchString;
	private int pageSize = 10;
    private int page  = 2;
    
    private static List<String> categories ;


	@PersistenceContext
    private EntityManager entityManager;
    
    private List<Motorcyclecateg> motorcycleCats;
    @DataModel
    private List<Motorcycle> motorcycles;
   
    @Create    
    public void begin()
    {	System.out.println("size og cats is: " );
    	categories = new ArrayList();
    	List<Motorcyclecateg> motorcycleCats;
    	motorcycleCats =   entityManager.createQuery(
    			"select motoCategory from  Motorcyclecateg motoCategory " 
                ) .getResultList();
    	
    	for (Motorcyclecateg cat : motorcycleCats) {
    		categories.add(cat.getCategory());
    	}
    	System.out.println("getCategories() size: " + categories.size());
    }

    
    @SuppressWarnings("unchecked")
    public void queryMotorcycles() {
    	motorcycles = entityManager.createQuery(
    			"select motor from  motorcycle motor " /*+
    			" where lower(motoCategory.category) like #{pattern} "*/
                )
                .setMaxResults(pageSize)
                .setFirstResult(page * pageSize).getResultList();
    	System.out.println("size og cats is: " + motorcycles.size());
    }
    
    public List<String> getCategories() {
    	
		return categories;
	}

	public void setCategories(List<String> categories) {
		this.categories = categories;
	}
    
    public List<Motorcycle> getMotorcycles() {
		return motorcycles;
	}

	public void setMotorcycles(List<Motorcycle> motorcycles) {
		this.motorcycles = motorcycles;
	}

	public void nextPage()
    {
       page++;
    }
    
	public void find() {
        page = 0;
        if (motorcycleCats != null) {
        	motorcycleCats.clear();
        }
    }

	@Factory(value="patternMotor", scope=ScopeType.EVENT)
	public String getSearchPattern()
	{
	  return searchString==null ? 
	   "%" : '%' + searchString.toLowerCase().replace('*', '%') + '%';
	}

	
	public void validate(){
		
	}
	
	 public boolean isNextPageAvailable()
	   {
	      return motorcycleCats!=null && motorcycleCats.size()==pageSize;
	   }

	
    public String getSearchString() {
		return searchString;
	}

	public void setSearchString(String searchString) {
		this.searchString = searchString;
	}

	public int getPageSize() {
		return pageSize;
	}

	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}

	public int getPage() {
		return page;
	}

	public void setPage(int page) {
		this.page = page;
	}

	public List<Motorcyclecateg> getMotorcycleCats() {
		return motorcycleCats;
	}
	
	
	public void setMotorcycleCats(List<Motorcyclecateg> motorcycleCats) {
		this.motorcycleCats = motorcycleCats;
	}
	@Remove
	public void remove(){
		
	}
	
	@Destroy
	public void destroy(){
		
	}

}
   

The interface of this file is:

 
package com.advert.sbeans;

import java.util.List;

import com.advert.ebeans.Motorcycle;
import com.advert.ebeans.Motorcyclecateg;

public interface MotorcycleAction {
	
	 public void begin();
	public void queryMotorcycles();
	public List<Motorcycle> getMotorcycles() ;
	public void setMotorcycles(List<Motorcycle> motorcycles);

	
	 public void nextPage();
	 public void find();
	 public String getSearchPattern();
	 public void validate();
	 public boolean isNextPageAvailable();
	  public String getSearchString();
	 public void setSearchString(String searchString);
	 public int getPageSize();
	 public void setPageSize(int pageSize);
	 public int getPage();
	 public void setPage(int page);
	 public List<Motorcyclecateg> getMotorcycleCats();
	 public void setMotorcycleCats(List<Motorcyclecateg> motorcycleCats);
	 public void remove();
}

   

The xhtml page is :

   
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
    xmlns:s="http://jboss.com/products/seam/taglib"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:rich="http://richfaces.org/rich"
    xmlns:a="http://richfaces.org/a4j"
    template="layout/template.xhtml">

<ui:define name="body"> 

        <f:facet name="header">motorcycleAction</f:facet>
        <h:form id="MotorcycleActionForm">
         
    <fieldset> 
			 <h:selectOneMenu id="selectCar"
				 value="#{motorcycleService.searchString}">
 				 <s:selectItems
   				value="#{motorcycleService.categories}" />
			</h:selectOneMenu> 
			 
            <h:commandButton id="motorcycleAction" value="motorcycleAction!"
                             action="#{MotorcycleAction.motorcycleAction}"/>
		</fieldset>
        </h:form>


</ui:define>

</ui:composition>

 

The full trace is as follow from the log file:

2009-03-23 18:40:22,500 INFO  [STDOUT] getCategories() size: 16
2009-03-23 18:40:22,515 DEBUG [org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor] ++++ LongLivedSessionPropagationInterceptor
2009-03-23 18:40:22,515 DEBUG [org.jboss.seam.contexts.Contexts] found in session context: motorcycleService
2009-03-23 18:40:22,515 ERROR [STDERR] Mar 23, 2009 6:40:22 PM com.sun.facelets.FaceletViewHandler handleRenderException
SEVERE: Error Rendering View[/motorcycleSearchAction.xhtml]
javax.faces.FacesException: javax.el.PropertyNotFoundException: /motorcycleSearchAction.xhtml @21,50 value="#{motorcycleService.categories}": Property 'categories' not found on type org.javassist.tmp.java.lang.Object_$$_javassist_5
	at javax.faces.component.UISelectItems.getValue(UISelectItems.java:144)
	at org.jboss.seam.ui.component.UISelectItems.getValue(UISelectItems.java:161)
	at com.sun.faces.renderkit.RenderKitUtils.getSelectItems(RenderKitUtils.java:296)
	at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:801)
	at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:280)
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:861)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:946)
	at javax.faces.render.Renderer.encodeChildren(Renderer.java:148)
	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:936)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:942)
	at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
	at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
	at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:196)
	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:109)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
	at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
	at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
	at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
	at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
	at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)
	at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
	at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	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:230)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
	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:157)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
	at java.lang.Thread.run(Unknown Source)
Caused by: javax.el.PropertyNotFoundException: /motorcycleSearchAction.xhtml @21,50 value="#{motorcycleService.categories}": Property 'categories' not found on type org.javassist.tmp.java.lang.Object_$$_javassist_5
	at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:73)
	at javax.faces.component.UISelectItems.getValue(UISelectItems.java:141)
	... 58 more
    

Any help would be much appreciated.

Thanks in advance,
giannis

[Bauke Scholtz]

As specified in the documentation, the f:selectItems expects a SelectItem[] or List<SelectItem>, not List<SomeCustomObject>.

[Giannis nasdades]

Bauke Scholtz wrote:As specified in the documentation, the f:selectItems expects a SelectItem[] or List&lt;SelectItem&gt;, not List&lt;SomeCustomObject&gt;.

I tried this and my action class now is:

 
package com.advert.sbeans;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.ejb.Remove;
import javax.ejb.Stateful;
import javax.faces.model.SelectItem;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import com.advert.ebeans.Motorcycle;
import com.advert.ebeans.Motorcyclecateg;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.Destroy;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.datamodel.DataModel;
import org.jboss.seam.annotations.security.Restrict;

@Stateful
@Name("motorcycleService")
@Scope(ScopeType.SESSION)
//@Restrict("#{identity.loggedIn}")
public class MotorcycleActionImpl implements MotorcycleAction/*, Serializable*/{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private String searchString;
	private int pageSize = 10;
    private int page  = 2;
    
    private static List<SelectItem> categories ;


	@PersistenceContext
    private EntityManager entityManager;
    
    private List<Motorcyclecateg> motorcycleCats;
    @DataModel
    private List<Motorcycle> motorcycles;
   
    @Create    
    public void begin()
    {	System.out.println("size og cats is: " );
    	categories = new ArrayList();
    	List<Motorcyclecateg> motorcycleCats;
    	motorcycleCats =   entityManager.createQuery(
    			"select motoCategory from  Motorcyclecateg motoCategory " 
                ) .getResultList();
    	
    	for (Motorcyclecateg cat : motorcycleCats) {
    		categories.add(new SelectItem(cat.getCategory()));
    	}
    	System.out.println("getCategories() size: " + categories.size());
    }

    
    @SuppressWarnings("unchecked")
    public void queryMotorcycles() {
    	motorcycles = entityManager.createQuery(
    			"select motor from  motorcycle motor " /*+
    			" where lower(motoCategory.category) like #{pattern} "*/
                )
                .setMaxResults(pageSize)
                .setFirstResult(page * pageSize).getResultList();
    	System.out.println("size og cats is: " + motorcycles.size());
    }
    
    public List<SelectItem> getCategories() {
    	
		return categories;
	}

	public void setCategories(List<SelectItem> categories) {
		this.categories = categories;
	}
    
    public List<Motorcycle> getMotorcycles() {
		return motorcycles;
	}

	public void setMotorcycles(List<Motorcycle> motorcycles) {
		this.motorcycles = motorcycles;
	}

	public void nextPage()
    {
       page++;
    }
    
	public void find() {
        page = 0;
        if (motorcycleCats != null) {
        	motorcycleCats.clear();
        }
    }

	@Factory(value="patternMotor", scope=ScopeType.EVENT)
	public String getSearchPattern()
	{
	  return searchString==null ? 
	   "%" : '%' + searchString.toLowerCase().replace('*', '%') + '%';
	}

	
	public void validate(){
		
	}
	
	 public boolean isNextPageAvailable()
	   {
	      return motorcycleCats!=null && motorcycleCats.size()==pageSize;
	   }

	
    public String getSearchString() {
		return searchString;
	}

	public void setSearchString(String searchString) {
		this.searchString = searchString;
	}

	public int getPageSize() {
		return pageSize;
	}

	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}

	public int getPage() {
		return page;
	}

	public void setPage(int page) {
		this.page = page;
	}

	public List<Motorcyclecateg> getMotorcycleCats() {
		return motorcycleCats;
	}
	
	
	public void setMotorcycleCats(List<Motorcyclecateg> motorcycleCats) {
		this.motorcycleCats = motorcycleCats;
	}
	@Remove
	public void remove(){
		
	}
	
	@Destroy
	public void destroy(){
		
	}

}

   

but i keep getting the same error.

Any more ideas?

Thanks in advance

[Bauke Scholtz]

Did you recompile, redeploy and restart correctly?

[Giannis nasdades]

Bauke Scholtz wrote:Did you recompile, redeploy and restart correctly?

yes but nothing happens... i dont understand..

thanks for your help honestly.

giannis