Hi there is one mistake. But that's not the cause of problem.
Server Info: ${pageContext.application.ServerInfo}
will be
Server Info: ${pageContext.application.serverInfo}
and
Servlet Name: ${pageContext.config.servletInfo}
will be
Servlet Name: ${pageContext.config.servletInfo}
That's something, I comitted while posting.
Even
${pageContext.config}
${pageContext.application}
don't work while
${pageContext.session}
${pageContext.request}
${pageContext.page}
${pageContext.out}
work Regards,
Khushhal