The lora development suite (mac download) on the link you provided contains a newer version of the java tool in Applications / LoraDevUtility folder but it has the same issue that @jsperri mentionned.
Event Type: 1.Event Value: 3.Port Name: /dev/tty.usbserial-DN01EYAZ
Before validation
5
dfuTabSelected
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1774)
at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)
...
Caused by: java.lang.IllegalArgumentException: Folder parameter must be a valid folder
at com.sun.glass.ui.CommonDialogs.convertFolder(CommonDialogs.java:238)
at com.sun.glass.ui.CommonDialogs.showFileChooser(CommonDialogs.java:190)
at com.sun.javafx.tk.quantum.QuantumToolkit.showFileChooser(QuantumToolkit.java:1496)
at javafx.stage.FileChooser.showDialog(FileChooser.java:416)
at javafx.stage.FileChooser.showOpenDialog(FileChooser.java:350)
at fed.FEDFXMLController.onFileBrowse(FEDFXMLController.java:7049)
... 83 more
The java preferences for mac are stored in ~/Library/Preferences/… but I could not find anything related to fed or dfu
Seems that somebody else already tried to fix this for linux but Microchip is the only one who can fix this unless they make the source code available.
@kersing Is there an issue tracker where we can report and follow up on LoRa Development Suite bugs?