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vdatabase.cart.ShoppingCart
java.lang.ClassCastException: vdatabase.cart.ShoppingCart	at org.apache.jsp.DisplayShoppingCart$jsp._jspService(DisplayShoppingCart$jsp.java:74)	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)	at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:202)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)