error update

code/LanBortalWeb/src/fi/insomnia/bortal/web/ErrorPageView.java

 package fi.insomnia.bortal.web;
 package fi.insomnia.bortal.web;
 
 
-import javax.enterprise.context.RequestScoped;
-import javax.faces.application.FacesMessage;
+import javax.enterprise.context.SessionScoped;
 import javax.faces.context.FacesContext;
 import javax.faces.context.FacesContext;
-import javax.inject.Inject;
 import javax.inject.Named;
 import javax.inject.Named;
 
 
-import fi.insomnia.bortal.beans.CardPrintBeanLocal;
-import fi.insomnia.bortal.model.EventUser;
-import fi.insomnia.bortal.web.cdiview.user.UserCartView;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import sun.misc.Queue;
+
 
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.InputStream;
 import java.io.PrintWriter;
 import java.io.PrintWriter;
 import java.io.Serializable;
 import java.io.Serializable;
 import java.io.StringWriter;
 import java.io.StringWriter;
-import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Calendar;
-import java.util.List;
 import java.util.Map;
 import java.util.Map;
 
 
 @Named
 @Named
-@RequestScoped
-public class ErrorPageView {
-
+@SessionScoped
+public class ErrorPageView implements Serializable {
+
+/**
+	 * 
+	 */
+	private static final long serialVersionUID = 1L;
+	//	private static final long serialVersionUID = -2179309061036632342L;
 	String trace;
 	String trace;
 	
 	
+	// maintain a trail of pages visited (10?)
+	Queue trail = new Queue();
+	
+	@SuppressWarnings("unused")
+	private static final Logger logger = LoggerFactory.getLogger(ErrorPageView.class);
+	
 	public String getStackTrace() {
 	public String getStackTrace() {
 	 
 	 
 	    FacesContext context = FacesContext.getCurrentInstance();
 	    FacesContext context = FacesContext.getCurrentInstance();