GetSafe.java

public static <V> V getSafe(Supplier<V> func) {
  V res = null;
  try {
    res = func.get();
  } catch (java.lang.NullPointerException e) { }
  return res;
}

log.info("C: {}", getSafe(() -> a.getA().getC()));

/*
class C {
  public C getC() {
    return this;
  }
}

class B {
  private C c = new C();
  public C getB() {
    //return null;
    return c.getC();
  }
}

class A {
  private B b = new B();
  public C getA() {
    return b.getB();
  }
}/**/