java - Adding a pre-requisite task to mvn javadoc:javadoc -

I would like to run a shell script (before converting markdown to html) mvn javadoc: javadoc is running. How can I add this shell script as a dependency of the javadoc function?

The command you are using is just calling the target javadoc but you need a life-cycle Where you can attach a shell script to run so that you need to call mvn site to run your shell script.