Best Practice: Java static non final variables

Question

In Java, when should static non final variables be used?

For example

private static int MY_VAR = 0;

Obviously we are not talking ab

Answer 1

When used as a cache, logging, statistics or a debug switch are the obvious reasonable uses. All private, of course.

If you have mutable object assigned to a final field, that is morally the same as having a mutable field.

Some languages, such as Fan, completely disallow mutable statics (or equivalent).