Handle custom URL schemes in an OS X Java application

Question

The Info.plist of our Java-based application contains following entries:

Answer 1

With Java 9, this is easy quite easy, and no longer requires Apple's EAWT classes or any ObjC hackery.

    Desktop.getDesktop().setOpenURIHandler((event) -> {
        System.out.println("Open URI: " + event.getURI());
        // do something with the URI
    });

The application needs to be bundled, and the CFBundleURLTypes key must be set.

CFBundleURLTypes

  
    CFBundleURLSchemes
    
        example
    
    CFBundleURLName
    
  

Unfortunately this only captures the URI if the application is already running. If the application was launched by opening a URI, the event is not delivered (see comments on ed22's answer).