HTTP Status 500 – Internal Server Error


Type Exception Report

Message An exception occurred processing [buchen.jsp] at line [26]

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.apache.jasper.JasperException: An exception occurred processing [buchen.jsp] at line [26]

23: 	CottageAttributeDao cottageAttributeDao = new CottageAttributeDao(conn);
24: 
25: 	Cottage cottage = null;
26: 	CottageRequest cr = CottageRequest.build((QueryGenerator)session.getAttribute(QueryGenerator.SESSION_ATTRIBUTE), Long.valueOf(request.getParameter("objectID")));
27: 	if(!cr.isValid()) {
28: 		response.sendRedirect("/");
29: 		return;


Stacktrace:
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:626)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:515)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	se.tinia.svenskastugor.QueryGeneratorFilter.doFilter(QueryGeneratorFilter.java:31)
	se.tinia.wau2.action.ActionFilter.doFilter(ActionFilter.java:94)
	se.ssfturist.www.i18n.I18NFilter.doFilter(I18NFilter.java:53)
	se.mvcsoft.utils.web.filters.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:50)
	se.mvcsoft.utils.web.HostRedirectorFilter.doFilter(HostRedirectorFilter.java:65)
	se.mvcsoft.utils.web.HttpsRedirectFilter.doFilter(HttpsRedirectFilter.java:74)

Root Cause

java.lang.NumberFormatException: null
	java.base/java.lang.Long.parseLong(Long.java:655)
	java.base/java.lang.Long.valueOf(Long.java:1144)
	org.apache.jsp.buchen_jsp._jspService(buchen_jsp.java:177)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	se.tinia.svenskastugor.QueryGeneratorFilter.doFilter(QueryGeneratorFilter.java:31)
	se.tinia.wau2.action.ActionFilter.doFilter(ActionFilter.java:94)
	se.ssfturist.www.i18n.I18NFilter.doFilter(I18NFilter.java:53)
	se.mvcsoft.utils.web.filters.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:50)
	se.mvcsoft.utils.web.HostRedirectorFilter.doFilter(HostRedirectorFilter.java:65)
	se.mvcsoft.utils.web.HttpsRedirectFilter.doFilter(HttpsRedirectFilter.java:74)

Note The full stack trace of the root cause is available in the server logs.


Apache Tomcat/9.0.31 (Ubuntu)