[aspectj-users] pertarget instantiation && within

[Adam Przybylek <adam@xxxxxxxxxxx>]

aspect XYZ pertarget(target(SomeClass) && !within(XYZ)) {
  protected SomeClass sm;

  public XYZ() {
    sm = new SomeClass();
  }
}

I would like not to instantiate the XYZ aspect when the object referred 
by sm is created. What do I do wrong?