Thanks for you reply. Included more codes below.

Code for PrescientTemplateOriginalPage below
package org.possible.bug;

import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.model.Model;

/**
 *
 * @author oyeso
 */
public class PrescientTemplateOriginalPage extends WebPage {
  
    private final String footerId="footerPanel";
    private final String headerId="headerPanel";
    
    
    
    
    private FooterPanel footer;
    private HeaderPanel header;

    public PrescientTemplateOriginalPage() {
           this.header = new HeaderPanel(headerId);
       
        this.footer = new FooterPanel(footerId);
       
         add(header);
         add(footer);
    }

 

   

    public PrescientTemplateOriginalPage( FooterPanel footer, HeaderPanel
header) {
       
        this.footer = footer;
        this.header = header;
       
    }
    
    
}

Code for HeaderPanel below

import org.apache.wicket.Component;
import org.apache.wicket.MarkupContainer;
import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.image.Image;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.Model;

public class HeaderPanel extends Panel{
   private Label header;
   private Image imgHeader;
    public HeaderPanel(String id) {
        super(id);
          header=new Label("prescientDoctorsLabel",Model.of("Prescient
Doctors") );
          
        add(header);
        
    }

   

   
    
    
}

Code for FooterPanel Below

import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.Model;

public class FooterPanel extends Panel{

    public FooterPanel(String id) {
        super(id);
        add(new Label("footerLabel",Model.of("Footer Label Here")));
    }
    
}

Code for PrecientHome below

package org.possible.bug;

import java.io.IOException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.wicket.markup.html.MarkupUtil;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.DropDownChoice;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.FormComponentUpdatingBehavior;
import org.apache.wicket.model.Model;
import org.apache.wicket.model.PropertyModel;

/**
 *
 * @author oyeso
 */

        
public class PrescientHome  extends PrescientTemplateOriginalPage {
 
    private Model<ZipManagedBean> zipManager;
    private Form occForm;
    
    private WebMarkupContainer tagFrame;
   
    private Model<String> occupationListModel;
    private List <String> occupationList;
    private DropDownChoice<String> occupationChoices;

    public PrescientHome() {
          
            zipManager=Model.of(new ZipManagedBean());
    
    
    
     occupationListModel= new Model<>();
     occupationList=zipManager.getObject().getOccCode();
     occupationChoices=new
DropDownChoice<>("occupationModel",occupationListModel, occupationList );
   
        //queue(occForm);
        occForm=new Form("occupationForm"){
           @Override
           protected void onSubmit() {
               
               //Do the next thing
           }
            
        };
       occForm.add(occupationChoices);
       add(occForm);
     
   
    }
    

New Stack Trace below
java.lang.IllegalStateException: This container is already dequeing: [Page
class = org.possible.bug.PrescientHome, id = 0, render count = 0]
        at
org.apache.wicket.MarkupContainer.dequeuePreamble(MarkupContainer.java:1918)
        at org.apache.wicket.MarkupContainer.dequeue(MarkupContainer.java:1856)
        at
org.apache.wicket.MarkupContainer.dequeueChild(MarkupContainer.java:2018)
        at org.apache.wicket.MarkupContainer.dequeue(MarkupContainer.java:1983)
        at
org.apache.wicket.MarkupContainer.dequeuePreamble(MarkupContainer.java:1931)
        at org.apache.wicket.MarkupContainer.dequeue(MarkupContainer.java:1856)
        at
org.apache.wicket.MarkupContainer.onInitialize(MarkupContainer.java:1887)
        at org.apache.wicket.Page.onInitialize(Page.java:298)
        at org.apache.wicket.Component.fireInitialize(Component.java:873)
        at
org.apache.wicket.MarkupContainer.internalInitialize(MarkupContainer.java:1038)
        at org.apache.wicket.Page.isPageStateless(Page.java:461)
        at
org.apache.wicket.core.request.mapper.AbstractBookmarkableMapper.getPageInfo(AbstractBookmarkableMapper.java:473)
        at
org.apache.wicket.core.request.mapper.AbstractBookmarkableMapper.mapHandler(AbstractBookmarkableMapper.java:420)
        at
org.apache.wicket.core.request.mapper.MountedMapper.mapHandler(MountedMapper.java:155)
        at
org.apache.wicket.request.mapper.CompoundRequestMapper.mapHandler(CompoundRequestMapper.java:210)
        at
org.apache.wicket.request.cycle.RequestCycle.mapUrlFor(RequestCycle.java:451)
        at
org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:233)
        at
org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:202)
        at
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:914)
        at
org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:65)
        at
org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:282)
        at
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:253)
        at
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:221)
        at
org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:275)
        at
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:206)
        at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:299)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:251)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:209)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
        at
org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:755)
        at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:575)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:159)
        at
org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:371)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:238)
        at
com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:520)
        at
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:217)
        at
org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:182)
        at
org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:156)
        at
org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:218)
        at
org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:95)
        at
org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:260)
        at
org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:177)
        at
org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:109)
        at
org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:88)
        at
org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:53)
        at
org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:524)
        at
org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:89)
        at
org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:94)
        at
org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:33)
        at
org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:114)
        at
org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:569)
        at
org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:549)
        at java.base/java.lang.Thread.run(Thread.java:834)
|#]

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