HTTP Status 500 – Internal Server Error

Type Exception Report

Message Unable to compile class for JSP:

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

Exception

org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: [3] in the jsp file: [/_loadMainPages.jspf]
Duplicate local variable vMainPagesOnline
1: <%
2:     //Vector vMainPages = null;
3: 	Vector vMainPagesOnline = new Vector();
4: 
5: 	queryXML = "";
6: 	valuesXML = new Vector();


Stacktrace:
	org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
	org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:214)
	org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:531)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:398)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:368)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:352)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:603)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:327)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:518)
	org.apache.jsp.Sezione_jsp._jspService(Sezione_jsp.java:1596)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:466)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:327)
	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/9.0.82