What are the minimum unix permissions to run an executable jar file?

If I have a jar that I need to run using java -jar FOO.jar on unix, does this depend on the read, write or execute bit? Or some combination thereof?

Do JAR files need execute permission?

You will need read , since the jar is virtually executed by java (of course java needs to have exec permissions).

How do I give permission to a JAR file?

install_jar( ) installs a JAR file in the database and declares a JAR ID for the file, Informix® can access that JAR file only if the user who installed the Informix instance (typically, user 'informix') has permission to read the directory where the JAR file resides.

You just need read on the .jar, since 'java' is what you're executing, and it reads the jar.