To avoid mistakes if we want that a Method, Field or Nested class have a default access modifier we must add a comment at the beginning of the Method, Field or Nested class. By default the comment must be /* default */, if you want another, you have to provide a regex.
public class Foo { final String stringValue = "some string"; String getString() { return stringValue; } class NestedFoo { } } // should be public class Foo { /* default */ final String stringValue = "some string"; /* default */ String getString() { return stringValue; } /* default */ class NestedFoo { } }