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: java.lang.ClassCastException: net.ontopia.topicmaps.impl.basic.Occurrence cannot be cast to net.ontopia.topicmaps.core.TopicIF
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:532)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455)
	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

java.lang.ClassCastException: net.ontopia.topicmaps.impl.basic.Occurrence cannot be cast to net.ontopia.topicmaps.core.TopicIF
	net.ontopia.topicmaps.nav2.utils.TreeWidget.getTopic(TreeWidget.java:476)
	net.ontopia.topicmaps.nav2.utils.TreeWidget.run(TreeWidget.java:224)
	net.ontopia.topicmaps.nav2.utils.TreeWidget.run(TreeWidget.java:206)
	org.apache.jsp.categories_jsp._jspService(categories_jsp.java:151)
	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