@Test void builderShouldAcceptNullUserFlags() { assertThat( FlagsFactory.builder() .addUserFlags((String)null) .build()) .isEqualTo(new Flags()); }
public static Builder builder() { return new Builder(); }
FlagsFactory { public static Builder builder() { return new Builder(); } }
FlagsFactory { public static Builder builder() { return new Builder(); }  }
FlagsFactory { public static Builder builder() { return new Builder(); }  static Flags createFlags(MailboxMessage mailboxMessage, String[] userFlags); static Builder builder(); static Flags empty(); }
FlagsFactory { public static Builder builder() { return new Builder(); }  static Flags createFlags(MailboxMessage mailboxMessage, String[] userFlags); static Builder builder(); static Flags empty();  }