HTTP Status 500 -


type Exception report

message

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

exception

org.apache.jasper.JasperException: javax.servlet.ServletException: net.ontopia.topicmaps.nav2.core.NavigatorRuntimeException: net.ontopia.topicmaps.nav2.taglibs.tolog.OutTag : requires a variable (attribute 'var') containing a non-empty Collection, but the Collection in the variable 'language' is empty. It is possible to get a fallback value by setting the 'fallback' attribute.

	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:532)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:440)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

root cause

javax.servlet.ServletException: net.ontopia.topicmaps.nav2.core.NavigatorRuntimeException: net.ontopia.topicmaps.nav2.taglibs.tolog.OutTag : requires a variable (attribute 'var') containing a non-empty Collection, but the Collection in the variable 'language' is empty. It is possible to get a fallback value by setting the 'fallback' attribute.

	org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:911)
	org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:840)
	org.apache.jsp.language_jsp._jspService(language_jsp.java:142)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

root cause

net.ontopia.topicmaps.nav2.core.NavigatorRuntimeException: net.ontopia.topicmaps.nav2.taglibs.tolog.OutTag : requires a variable (attribute 'var') containing a non-empty Collection, but the Collection in the variable 'language' is empty. It is possible to get a fallback value by setting the 'fallback' attribute.

	net.ontopia.topicmaps.nav2.taglibs.tolog.BaseOutputProducingTag.generateOutputObject(BaseOutputProducingTag.java:140)
	net.ontopia.topicmaps.nav2.taglibs.tolog.BaseOutputProducingTag.doStartTag(BaseOutputProducingTag.java:75)
	org.apache.jsp.language_jsp._jspx_meth_tolog_005fout_005f0(language_jsp.java:265)
	org.apache.jsp.language_jsp._jspx_meth_template_005fput_005f0(language_jsp.java:235)
	org.apache.jsp.language_jsp._jspx_meth_template_005finsert_005f0(language_jsp.java:187)
	org.apache.jsp.language_jsp._jspService(language_jsp.java:115)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.10 logs.


Apache Tomcat/7.0.10