When the app starts you may see the following exception in console:

java.lang.NullPointerException
at com.sun.javaws.xdg.Menu.splitPath(Unknown Source)
at com.sun.javaws.xdg.Menu.addMenuPath(Unknown Source)
at com.sun.javaws.xdg.MenuDatabase.addMenu(Unknown Source)
at com.sun.javaws.xdg.XDGInstallHandler.writeMenuEntry(Unknown Source)
at com.sun.javaws.UnixInstallHandler.createDesktopFile(Unknown Source)
at com.sun.javaws.UnixInstallHandler.createStartMenuShortcut(Unknown Source)
at com.sun.javaws.UnixInstallHandler.createShortcuts(Unknown Source)
at com.sun.javaws.UnixInstallHandler.createShortcuts(Unknown Source)
at com.sun.javaws.LocalInstallHandler.installShortcuts(Unknown Source)
at com.sun.javaws.LocalInstallHandler.performIntegration(Unknown Source)
at com.sun.javaws.LocalInstallHandler.install(Unknown Source)
at sun.plugin2.applet.JNLP2Manager$3.run(Unknown Source)
at java.lang.Thread.run(Thread.java:744)