Specifying the default value for an annotation parameter is redundant. Such values should be omitted in the interests of readability.

Noncompliant Code Example

@MyAnnotation(arg = "def")  // Noncompliant
public class MyClass {
  // ...
}
public @interface MyAnnotation {
  String arg() default "def";
}

Compliant Solution

@MyAnnotation
public class MyClass {
  // ...
}
public @interface MyAnnotation {
  String arg() default "def";
}