Error Full Fill

package de.forsthaus.webui.blog;

import mcrt.model.FunctionsServices;
import mcrt.model.UserServices;

import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.util.GenericForwardComposer;
import org.zkoss.zul.ListModelList;
import org.zkoss.zul.Listbox;
import org.zkoss.zul.ListitemRenderer;

public class FunctionPop extends GenericForwardComposer{
	/**
	 * 
	 */
	private Listbox listFunc;
	private ListModelList listModel;
	private static final long serialVersionUID = -5008511463280808309L;

	public void doAfterCompose(Component comp) throws Exception {
		super.doAfterCompose(comp);
		listModel = new ListModelList(DummyFunction.getFunctionList());
		listFunc.setItemRenderer(new FunctionRender());
		listFunc.setModel(listModel);
	}
 
	public void onAfterRender$listGrid() {
		FunctionsServices fservices = new FunctionsServices();
		for (int i = 0; i < fservices.findAll().size(); i++) {
			listFunc.renderItem(listFunc.getItemAtIndex(i));
		}
	}
}

package de.forsthaus.webui.blog;

import java.util.ArrayList;

import mcrt.model.Functions; 
import mcrt.model.FunctionsServices;

public class DummyFunction {
	private static ArrayList<Functions> functionList = new ArrayList<Functions>();

	static {
		setFunctionList();
	}

	public static ArrayList<Functions> getFunctionList() {
		return functionList;
	}

	private static void setFunctionList() {

		FunctionsServices uservices = new FunctionsServices();

		for (int i = 0; i < uservices.findAll().size() - 1; i++) {
			Functions func = new Functions();
			//func.setsDescription(uservices.findAll().get(i).getsDescription());
			functionList.add(new Functions(uservices.findAll().get(i).getID(),uservices.findAll().get(i).getFunctionName(),uservices.findAll().get(i).getFunctionURL()));

		}

	}
}

package de.forsthaus.webui.blog;

import mcrt.model.Functions; 

import org.zkoss.zk.ui.sys.ComponentsCtrl;
import org.zkoss.zul.Listcell;
import org.zkoss.zul.Listitem;
import org.zkoss.zul.ListitemRenderer;

public class FunctionRender implements ListitemRenderer{
	public void render(Listitem item, Object data) throws Exception {
		Functions func = (Functions) data;
		item.setValue(func);
		item.setAttribute("data", data);
        ComponentsCtrl.applyForward(item,
                "onDoubleClick=onDoubleClicked");
        
		Listcell lc;
		 
		lc = new Listcell(String.valueOf(func.getID()));lc.setParent(item);
		lc = new Listcell(String.valueOf(func.getFunctionName()));  lc.setParent(item); 
		lc = new Listcell(String.valueOf(func.getFunctionURL()));lc.setParent(item); 
		
	}
}

package mcrt.model;
 
import java.sql.ResultSet;
import java.sql.SQLException; 
import java.util.List;
import java.util.LinkedList;

import mcrt.config.ConnectODBC_DSN;

public class FunctionsServices implements FunctionInterface{

	// data model
		private List<Functions> func = new LinkedList<Functions>();
		 
		public FunctionsServices() {
			try {
				try {
					ConnectODBC_DSN conDSN = new ConnectODBC_DSN();
					ResultSet rs = conDSN.GetResultSet("tblFunctions"); 
					while (rs.next()) {
						String ID = rs.getString("ID");
						String FunctionName = rs.getString("FunctionName");
						String FunctionURL = rs.getString("FunctionURL"); 
						func.add(new Functions(ID, FunctionName,FunctionURL) ); 
					}
				} catch (SQLException s) {
					System.out.println("SQL statement is not executed!");
				}
			} catch (Exception a) {
				a.printStackTrace();
			}
		}
		@Override
		public List<Functions> findAll() { 
			return func;
		}

		 
		//Search with UserID
		@Override
		public List<Functions> getDetails(String keyword) {
			try {
				try {
					ConnectODBC_DSN conDSN = new ConnectODBC_DSN();
					ResultSet rs = conDSN.processSQL("select * from tblFunctions where FunctionName=" + keyword);
					while (rs.next()) {
						String ID = rs.getString("ID");
						String FunctionName = rs.getString("FunctionName");
						String FunctionURL = rs.getString("FunctionURL"); 
						func.add(new Functions(ID, FunctionName,FunctionURL) ); 
					}
				} catch (SQLException s) {
					System.out.println("SQL statement is not executed!");
				}
			} catch (Exception a) {
				a.printStackTrace();
			}
			
			return func;
		}

		@Override
		public String insertFunction(String FunctionName,String FunctionURL) { 
			System.out.println("name: "+FunctionName + " url: " + FunctionURL);
			try {
				try {
					ConnectODBC_DSN conDSN = new ConnectODBC_DSN();
					conDSN.executeSQL("insert into tblFunctions(FunctionName,FunctionURL) values('" + FunctionName + "','" + FunctionURL + "')");
					return "success";
					 
				} catch (SQLException s) {
					System.out.println("SQL statement is not executed!");
					return "error";
				}
			} catch (Exception a) {
				a.printStackTrace();
				return "error";
			}
		}
		
}