ModelFacade / Java / MySQL / localhost / get error: list table rows
you may find the complete JAVA EE App I refer at:
Cengage Learning -Dynamic Web Application Development
Examples:Chapter 12: 12-3 folder [database in 12-1]
I am currently debugging...
Q:sometimes I getting errors, with some code lines[not numbers] themselfs appear on error, and sometimes without... who confg this?
ERROR Getting:
Code:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: javax.el.ELException: Error reading 'claims' on type com.webhomecover.beans.ClaimCollection
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
javax.el.ELException: Error reading 'claims' on type com.webhomecover.beans.ClaimCollection
javax.el.BeanELResolver.getValue(BeanELResolver.java:66)
javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
org.apache.el.parser.AstValue.getValue(AstValue.java:118)
org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
org.apache.jasper****ntime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:925)
org.apache.jsp.listclaims_jsp._jspx_meth_c_005fforEach_005f0(listclaims_jsp.java:125)
org.apache.jsp.listclaims_jsp._jspService(listclaims_jsp.java:99)
org.apache.jasper****ntime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
java.lang.NullPointerException
com.webhomecover.dao.ClaimDAO.readClaims(Unknown Source)
com.webhomecover.model.ModelFacade.getClaims(Unknown Source)
com.webhomecover.beans.ClaimCollection.getClaims(Unknown Source)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
javax.el.BeanELResolver.getValue(BeanELResolver.java:62)
javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
org.apache.el.parser.AstValue.getValue(AstValue.java:118)
org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
org.apache.jasper****ntime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:925)
org.apache.jsp.listclaims_jsp._jspx_meth_c_005fforEach_005f0(listclaims_jsp.java:125)
org.apache.jsp.listclaims_jsp._jspService(listclaims_jsp.java:99)
org.apache.jasper****ntime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.
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ModelFacade / Java / MySQL / localhost / get error: list table rows
04-29-10, 16:07
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