Specifies that an element of the program is a user-visible string which needs to be localized. This annotation is intended to be used by localization tools for detecting strings which should be reported as requiring localization.

This annotation also could be used as a meta-annotation, to define derived annotations for convenience. E.g. the following annotation could be defined to annotate the strings that represent dialog titles:

@Nls(capitalization = Capitalization.Title)
@interface DialogTitle {}

Note that using the derived annotation as meta-annotation is not supported. Meta-annotation works only one level deep.