if class annotated by @Contended, its fields must be padded. but they don't padded againts subclasses's fields.

e.g. offset of T1E.int2 and T1E.int3 must be equal to 272 and 276 respectively:

@Contended
class T1 {
    private int int1;
}

class T1E extends T1 {
    private int int2;
    private int int3;
}

PrintFieldLayout:
T1: field layout
  @140 --- instance fields start ---
  @140 "int1" I
  @140 --- instance fields end ---
  @272 --- instance ends ---
  @ 88 --- static fields start ---
  @344 --- static fields end ---

T1E: field layout
  @144 --- instance fields start ---
  @144 "int2" I
  @148 "int3" I
  @144 --- instance fields end ---
  @152 --- instance ends ---
  @ 88 --- static fields start ---
  @ 88 --- static fields end ---