public class Fields {

  // Not final field
  String s = null;

  void setString(String s) {
    this.s = s;
  }

  // Test flow for fields but in different receivers
  void others() {
    Fields withOddField = null;
    Fields notOddField = null;

    withOddField.s = null;
    notOddField.s = "m";
  }
}