HTTP Status 500 – Internal Server Error


Type Exception Report

Message Servlet execution threw an exception

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

Exception

javax.servlet.ServletException: Servlet execution threw an exception
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)

Root Cause

java.lang.NoClassDefFoundError: Could not initialize class de.nava.informa.impl.basic.ChannelBuilder
	com.deisedesign.deiseditor.tasks.standard.ImagesRSSFeed.display(ImagesRSSFeed.java:64)
	com.deisedesign.deiseditor.tasks.standard.ImagesRSSFeed.run(ImagesRSSFeed.java:47)
	Run.doGet(Run.java:196)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:529)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)

Root Cause

java.lang.ExceptionInInitializerError: Exception java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory [in thread "http-nio-80-exec-8"]
	de.nava.informa.impl.basic.ChannelBuilder.<clinit>(ChannelBuilder.java:61)
	com.deisedesign.deiseditor.tasks.standard.ImagesRSSFeed.display(ImagesRSSFeed.java:64)
	com.deisedesign.deiseditor.tasks.standard.ImagesRSSFeed.run(ImagesRSSFeed.java:47)
	Run.doGet(Run.java:196)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:529)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)

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


Apache Tomcat/9.0.78