If a variable x has type @GuardSatisfied, then all lock expressions for x's value are held.

Written on a formal parameter (including the receiver), this annotation indicates that the @GuardedBy type for the corresponding actual argument at the method call site is unknown at the method definition site, but any lock expressions that guard it are known to be held prior to the method call.

For example, the formal parameter of the String copy constructor, String#String(String s), is annotated with @GuardSatisfied. This requires that all locks guarding the actual argument are held when the constructor is called. However, the definition of the constructor does not need to know what those locks are (and it cannot know, because the constructor can be called by arbitrary code).