cannot execute binary file: Exec format error

[SpasNH]

Hi. Does anyone know what is the problem?
I have made the rars1_3_1.jar executable:
chmod a+x rars1_3_1.jar

I installed:
sudo apt-get install default-jdk
java -version
openjdk version "11.0.5" 2019-10-15
OpenJDK Runtime Environment (build 11.0.5+10-post-Debian-1deb10u1)
OpenJDK 64-Bit Server VM (build 11.0.5+10-post-Debian-1deb10u1, mixed mode, sharing)

I checked:
sudo update-alternatives --config java
[sudo] password for edu:
There is only one alternative in link group java (providing /usr/bin/java): /usr/lib/jvm/java-11-openjdk-amd64/bin/java
Nothing to configure.

Please help. I need rars because I'm following a riscv on openFPGA tutorial.
thanks.

[ammarfaizi2]

@SpasNH you must use java -jar to run the JAR file, not execute it as ELF file like that.

So, run java -jar rars1_3_1.jar.

[SpasNH]

Thank you very much! As you can see, I still have a lot of things to learn! Thank you again. El mié., 6 nov. 2019 5:47 p. m., Ammar Faizi <notifications@github.com> escribió:

…

@SpasNH <https://github.com/SpasNH> you must use java -jar to run the JAR file, not execute it as ELF file like that. So, run java -jar rars1_3_1.jar. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#59?email_source=notifications&email_token=ANPZOQ75VUSOWZKPUI5YJSTQSLYKLA5CNFSM4JJTPKLKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEDHGPWQ#issuecomment-550397914>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANPZOQYQFWFGER55SWY65KLQSLYKLANCNFSM4JJTPKLA> .

[TheThirdOne]

This seems to be resolved. Thanks @ammarfaizi2 for answering this before I got to it.