title: HTTP Status 500 - java.lang.NoClassDefFoundError: Could not initialize class org.apache.jasper.el.ELContextImpl
body: <p>When I try to browse "localhost:8080" on myeclipse, I get the following error:</p>
  
  <pre><code>type Exception report
  
  message java.lang.NoClassDefFoundError: Could not initialize class org.apache.jasper.el.ELContextImpl
  
  description The server encountered an internal error that prevented it from fulfilling this request.
  
  exception 
  
  javax.servlet.ServletException: java.lang.NoClassDefFoundError: Could not initialize class org.apache.jasper.el.ELContextImpl
      org.apache.jasper.servlet.JspServlet.service(JspServlet.java:343)
      javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
  
  
  root cause 
  
  java.lang.NoClassDefFoundError: Could not initialize class org.apache.jasper.el.ELContextImpl
      org.apache.jasper.compiler.Validator$ValidateVisitor.prepareExpression(Validator.java:1568)
      org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:747)
      org.apache.jasper.compiler.Node$ELExpression.accept(Node.java:954)
      org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
      org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)
      org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)
      org.apache.jasper.compiler.Node$Root.accept(Node.java:475)
      org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
      org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1795)
      org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:217)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
      org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
      org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
      org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
      org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
      org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
      javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
  </code></pre>