Reason for the existence of non-short-circuit logical operators

When used with boolean operands, & and | become logical operators per Section 15.22.2 of the JLS. Unlike && and ||, however, these don't short-circuit; they always evaluate both sides. I have a silly question: Why are the less-efficient non-short-circuit logical operators (&, |) still there, when we have the more-efficient short-circuit logical operators (&&, ||)? I mean, what is the real usage of the non-short-circuit logical operators, as opposed to with the short-circuit logical operators? In other words, what is the usage of always evaluating both sides by using the non-short-circuit logical operators?