jenv silently ignores different architecture binaries

[delabassee]

I accidentally tried to install binaries of a different architecture (arch64 instead of x64).
jenv finds the right file under /bin but obviously those are wrong. It goes ahead and stays silent, i.e., no error message.

java -version can't obviously be launched but an error is thrown.

bad CPU type in executable: /Library/Java/JavaVirtualMachines/jdk-21-b20.jdk/Contents/Home/bin/java