package javax.annotation; import java.lang.annotation.Documented; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import javax.annotation.meta.TypeQualifierNickname; import javax.annotation.meta.When; /** * Used to annotate a value that may be either negative or nonnegative, and * indicates that uses of it should check for * negative values before using it in a way that requires the value to be * nonnegative, and check for it being nonnegative before using it in a way that * requires it to be negative. */ @Documented @TypeQualifierNickname @Nonnegative(when = When.MAYBE) @Retention(RetentionPolicy.RUNTIME) public @interface CheckForSigned { }