Update #0 - First Release

sources/main/java/javax/annotation/Signed.java

@@ -0,0 +1,19 @@
+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 of unknown sign.
+ */
+@Documented
+@TypeQualifierNickname
+@Nonnegative(when = When.UNKNOWN)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Signed {
+
+}