Double-click on JAR doesn't launch the application - Mac OS X about installer HOT 16 OPEN

I don't know if this actually helps the issue, but one solution would be to create an extremely simple application in Automator that runs shell script java -jar "$@" when fed a jar file.

CatalinaJarLauncher.zip

You can then just use Get Info on any given jar to set this app as the default for opening jar files (the only side-effect of this is that the icons on jar files themselves will change, but if you don't mind that, this is a pretty good solution).

Here's a screenshot of the actual project in Automator:

EDIT: If you don't want this file to just clutter up your Desktop or anything, you can place it in ~/Library/Services/, as that is typically where Automator apps go.

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@todivefor any idea how this would be associated?

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So I've created a .jar file on my mac and when I double click it, it opens with jar launcher app. That seems to be working for me.

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Or is this to do with making jar launcher.app use adoptopenjdk Java rather than another vendor?

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running a test build with this fix: #95

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@todivefor could you please confirm the fix for me by running the following commands making sure that the INPUT_DIRECTORY variable is set correctly:

INPUT_DIRECTORY=/Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk
/usr/libexec/PlistBuddy -c "Add :JavaVM:JVMCapabilities:1 string JNI" "${INPUT_DIRECTORY}/Contents/Info.plist"
/usr/libexec/PlistBuddy -c "Add :JavaVM:JVMCapabilities:2 string BundledApp" "${INPUT_DIRECTORY}/Contents/Info.plist"

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@gdams that did not work. I first tried it just like you said and it seemed to work. I then tried it on INPUT_DIRECTORY=/Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk and it did not work there. I went back to adoptopenjdk-8.jdk and removed the above fix and re-tryed. It worked, so my statement all AdoptOpenJDK releases was false. Double click on 1.8.0_192-b12 works, but 11.0.3+7 does not.

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hmmm okay, do you know if an Oracle Java 11 works with this?

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I do not, but I can give it a try.

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I tried this on Oracle Java 11, and the bottom line is it operates the same as AdoptOpenJDK 11 (cannot double click jar). I can get both Oracle 11 and AdoptOpenJDK 11 to work if within Netbeans if I have Java Platform set to JDK 11 and Source/Binary Format set to JDK 8. I don't understand this and posted this question on Superuser:

https://superuser.com/questions/1429769/netbeans-java-platform-and-source-binary-format-inconsistency

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Thanks for your help. I'm thinking that I should probably land the change anyway to be consistent with Oracle and then we can do some further investigation.

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Something changed going from 11.0.8_10 to 11.0.9.1_1 and continues into 11.0.10_9. I have a jar file that I double click and worked until 11.0.9.1_1. I started getting that the jar file needed to be installed in and run from the user's home directory. I just went back to 11.0.8_10. Now I installed 11.0.10_9 and got the same. I guess "jar launcher.app" executed from the directory in which it resided, but now does not. I can execute java -jar xxxxx.jar from within the directory, but double click does not. This is not a big deal, I can work around, just a change.

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@todivefor could you please confirm the fix for me by running the following commands making sure that the INPUT_DIRECTORY variable is set correctly:

INPUT_DIRECTORY=/Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk
/usr/libexec/PlistBuddy -c "Add :JavaVM:JVMCapabilities:1 string JNI" "${INPUT_DIRECTORY}/Contents/Info.plist"
/usr/libexec/PlistBuddy -c "Add :JavaVM:JVMCapabilities:2 string BundledApp" "${INPUT_DIRECTORY}/Contents/Info.plist"

Hey.

I had this same issue, came across this issues thread. Fresh install of Mac OS Big Sur with Adopt Open JDK 11.

$ java -version
openjdk version "11.0.11" 2021-04-20
OpenJDK Runtime Environment AdoptOpenJDK-11.0.11+9 (build 11.0.11+9)

I adjusted INPUT_DIRECTORY. I can now launch .jar files with the stock JavaLauncher.app without issue.

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@jwrb what did you adjust INPUT_DIRECTORY to be? Can you also send me your Info.plist

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@jwrb I would be glad to test. How do I change INPUT_DIRECTORY?

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@jwrb Nevermind

Ran:

PWRMacbookPro:~ userid$ INPUT_DIRECTORY=/Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk
PWRMacbookPro:~ userid$ /usr/libexec/PlistBuddy -c "Add :JavaVM:JVMCapabilities:1 string JNI" "${INPUT_DIRECTORY}/Contents/Info.plist"
PWRMacbookPro:~ userid$ /usr/libexec/PlistBuddy -c "Add :JavaVM:JVMCapabilities:2 string BundledApp" "${INPUT_DIRECTORY}/Contents/Info.plist"
PWRMacbookPro:~ userid$

Got same result.

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