execute a command from server (browser) on a client

Thanks for the suggestions. We are already using the below approach. I
thought there may be more proper way to do this like Nagios has in-built
option to send restart command remotely from browser.

1) you would need a cgi script on the Xymon server capable of logging in to
the remote tomcat server with enough privilege to be able to restart tomcat
or to dump memory, then send back to your browser any restart messages or
the memory dump as a file download.