What am I supposed to do when I need to open a .jar file on MacBook Air when it keeps saying that I have to check the console for any error messages? Could you please tell me how I can avoid this to happen and how I can open my .jar file which I had many attempts to try and open it.
MacBook Air
Oracle has Java Development Kits (JDKs) that are the runtime environment's that make running a Java app possible.
.Jar files are not standalone applications. They require a Java runtime environment to interpret the embedded code to display the app.
In Catalina, Apple completely dropped Java.
There is no java launcher app that does the work necessary to find the java runtime and tell it to run and open the .jar file.
You have to run the specific java runtime and tell it to open the .jar file.
The java app that runs the .jar file is usually in its own "home" folder that is likely in /Library/Java/JavaVirtualMachines/<java version folder>/bin
So, you have to tell that version of the java app to open the .jar file from the command line using the full path to the java app with the -jar option and the path to the .jar file.
The most recent Oracle Open JDKs are here: https://jdk.java.net
I don't know if your .jar file will work with one of those releases. You would have to ask whoever created it what version of Java you need.
Oracle has Java Development Kits (JDKs) that are the runtime environment's that make running a Java app possible.
.Jar files are not standalone applications. They require a Java runtime environment to interpret the embedded code to display the app.
In Catalina, Apple completely dropped Java.
There is no java launcher app that does the work necessary to find the java runtime and tell it to run and open the .jar file.
You have to run the specific java runtime and tell it to open the .jar file.
The java app that runs the .jar file is usually in its own "home" folder that is likely in /Library/Java/JavaVirtualMachines/<java version folder>/bin
So, you have to tell that version of the java app to open the .jar file from the command line using the full path to the java app with the -jar option and the path to the .jar file.
The most recent Oracle Open JDKs are here: https://jdk.java.net
I don't know if your .jar file will work with one of those releases. You would have to ask whoever created it what version of Java you need.
What errors do you get?
Copy/paste this command into Terminal, leave a space, and drag your jar file into the terminal window. Hit return.
`/usr/libexec/java_home -v 1.8`/bin/java -jar
That uses the java_home command to find the home of the Java 8 jdk, then calls the java command from there to open the particular jar file.
Find out what version of Java it requires.
Install that Java version JDK
Use that java to open the .jar file with:
path/to/java/home/bin/java -jar path/to/jar/file.jar
It says I need Java 8, I tried downloading it but the problem is I don't know how to open it from java 8, could you please tell me how to do that?
Maybe your Java Runtime is not compatible with the .jar. Despite its claims, Java is hardly universal.
How do I find out what version, because it does not state it out, how am I supposed to download java jdk?
And finally what am I supposed to do with this path/to/java/home/bin/java -jar path/to/jar/file.jar
Please tell me and sorry for troubling.
So what am I supposed to do? Would you mind giving me a full on tutorial on how to open it properly?
I was actually able to open other .jar files but just 2 of them I need to open but it is not working. I am trying all solutions but without result, please help me.
How do I open a .Jar File when it says check console for error messages