Hi, currently (in jdk9/dev), tools like jlink/jmod support only "--modulepath" but not "--module-path". But notice that they support "--class-path" and "--module-version". As far as I can see, JEP 293: Guidelines for JDK Command-Line Tool Options [1] recommends "--module-path".
Also, the current help text for jmod in the jmod.properties resource file, contains this message: err.modulepath.must.be.specified=--module-path must be specified when hashing modules but jmod itself only understands "--modulepath" Is somebody taking care to harmonize all these command line options? Will this be done as part of JEP 293? Regards, Volker [1] http://openjdk.java.net/jeps/293