According to http://docs.oracle.com/javase/specs/jls/se7/html/jls-8.html#jls-8.9[the Java Language Specification-8.9]: ____ Nested enum types are implicitly ``++static++``. ____ So there's no need to declare them ``++static++`` explicitly. == Noncompliant Code Example ---- public class Flower { static enum Color { // Noncompliant; static is redundant here RED, YELLOW, BLUE, ORANGE } // ... } ---- == Compliant Solution ---- public class Flower { enum Color { // Compliant RED, YELLOW, BLUE, ORANGE } // ... } ----