Right now just allows invoking no-arg actions on local or remote MBeans.
To setup: Get leiningen (if you haven't already), then (assuming lein in your path):
$ lein uberjar
To use:
e.g. for help:
$ java -jar jmx-util-1.0.0-standalone.jar --help
e.g. to actually run
$ java -jar jmx-util-1.0.0-standalone.jar -h localhost -p 1234 -b "myapp:name=MyBean" -a "myoperation"
Invoking action myoperation on bean myapp:name=MyBean at localhost:1234