HTTP Status 500 - An exception occurred processing at line 35

HTTP Status 500 - An exception occurred processing JSP page /manage/addCategory.jsp at line 35

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type Exception report

message An exception occurred processing JSP page /manage/addCategory.jsp at line 35

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /manage/addCategory.jsp at line 35

32: 				}
33: 			}
34: 			var nameValue=encodeURI(this.value);
35: 			xhr.open("GET","${pageContext.request.ContextPath}/manage/ManageServlet?op=checkCategory&Name="+nameValue+"&time="+new Date().getTime());
36: 			xhr.send(null);
37: 		}
38: 	}

Stacktrace:
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:470)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	com.lce.filter.SetAllCharacterEncodingFilter.doFilter(SetAllCharacterEncodingFilter.java:45)

root cause

javax.el.PropertyNotFoundException: Property 'ContextPath' not found on type com.lce.filter.GetHttpServletRequest
	javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:229)
	javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:206)
	javax.el.BeanELResolver.property(BeanELResolver.java:317)
	javax.el.BeanELResolver.getValue(BeanELResolver.java:85)
	org.apache.jasper.el.JasperELResolver.getValue(JasperELResolver.java:104)
	org.apache.el.parser.AstValue.getValue(AstValue.java:182)
	org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
	org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:967)
	org.apache.jsp.manage.addCategory_jsp._jspService(addCategory_jsp.java:136)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	com.lce.filter.SetAllCharacterEncodingFilter.doFilter(SetAllCharacterEncodingFilter.java:45)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.52 logs.

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Apache Tomcat/7.0.52