org.apache.jasper.JasperException: java.lang.Exception: javax.ejb.TransactionRolledbackLocalException: createBeanClassInstanceCommand == null; CausedByException is: createBeanClassInstanceCommand == null at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:254) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295) at org.apache.jasper.servlet.JspServlet.service
org.apache.jasper.JasperException: java.lang.Exception: javax.ejb.CreateException: Could not create entity:java.sql.SQLException: General error message from server: "Column 'grade' cannot be null" at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:254)