Jar Launcher Mac
Is it possible to use 'Jar Launcher' on Mac to pass command line arguments to a java app? For example:
open myApp.jar --args -hello
This ought to run myApp and pass it '-hello' but it doesn't.
I'm on High Sierra 10.13.6. This comes with a 'Jar Launcher'. It's /System/Libary/CoreServices/Jar Launcher.app.
I can run the jar file with Jar Launcher, I did it from Finder and it works, but without command line arguments. After that I can run a command line 'open myApp.jar' and that works too, the open command uses Jar Launcher to open it. So far so good.
Now I want to pass arguments, let's say '-hello'
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I tried 'open myApp.jar --args -hello'. That does not work, the application does not receive the hello argument.
I can't figure out how to do this. Maybe the problem is with 'Jar Launcher', maybe it won't pass arguments through to the java app?
Java Launcher Free. Run Java programs by double clicking class files in Explorer and create EXE and executable JAR files. Because Mac OS X ships with the Jar Launcher application, the end user needs only double click on the jar file and the application will launch. To make the jar file executable, the manifest must include the name of the Main class file. Unjar JavaSoundDemo.jar with the command jar xvj JavaSoundDemo.jar. A random program that I installed reset the default application (Java) for.jar files on my Macbook, and to reset the behaviour in Mac OSX took a bit more work than I thought. Turns out the “Java Launcher” isn’t in the list of applications that you can select from, in the “Open With” list. Jar Launcher is the program in Mac OS X that launches Java JAR files into the Aqua/Java runtime environment when the JAR file is double clicked. Jar Launcher also launches a class in the same manner. Jar Launcher does not execute the Java files itself, rather it passes them to the Java Virtual Machine (JVM) with any appropriate parameters. A Lisp script and application launcher for Microsoft Windows, Linux and Mac OS X. The launcher mimics Java/JAR application distribution paradigm for Lisp and allows creation of relatively complex executable source code application distributions. Jan 09, 2019 Jar Launcher Mac app lets you launch the JAR files into the Java runtime environment or Aqua. It will be launched when you double-click the JAR file on your device. You can use the Jar Launcher Mac app as to launch the class in the same similar manner.
I know this can be done by installing a full JDK and using the java command instead of the built-in Jar Launcher, or compiling my jar into a Mac executable. I'm not a developer, I'd like to know if I can achieve this just using what's shipped on my Mac.
Earlier versions of MacOs shipped with a more complete Java environment, and a lot of the help I find out there refers to earlier versions.
1 Answer
Java Jar Launcher Mac
try creating a sh or command file where the jar file exists, eg myj.command.Then make edit with chmod7 755 so its executable in console.
the myj should be java -jar .jar --