Launching VisualVM on macOS

Things have changed since the last time I ran a JVM memory monitoring tool. VisualVM is now a standalone download, and you need to manually agree to the license. If you double click the application, nothing happens.

So download and install it, and then:

$ /Applications/VisualVM.app/Contents/MacOS/visualvm \ 
   --jdkhome $JAVA_HOME

You can also brew install visualvm.