HTTP Status 500 – Internal Server Error


Type Exception Report

Message java.lang.NoClassDefFoundError: Could not initialize class org.apache.jasper.compiler.EncodingDetector

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

Exception

javax.servlet.ServletException: java.lang.NoClassDefFoundError: Could not initialize class org.apache.jasper.compiler.EncodingDetector
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:336)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:583)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)

Root Cause

java.lang.NoClassDefFoundError: Could not initialize class org.apache.jasper.compiler.EncodingDetector
	org.apache.jasper.compiler.ParserController.determineSyntaxAndEncoding(ParserController.java:324)
	org.apache.jasper.compiler.ParserController.doParse(ParserController.java:201)
	org.apache.jasper.compiler.ParserController.parseDirectives(ParserController.java:128)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:375)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:351)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:335)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:597)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:383)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:331)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:583)
	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/8.5.89