### Question:
KTypeStack extends KTypeArrayList<KType> { public int pushAll(KTypeContainer<? extends KType> container) { return addAll(container); } KTypeStack();  KTypeStack(int expectedElements);  KTypeStack(int expectedElements, ArraySizingStrategy resizer);  KTypeStack(KTypeContainer<KType> container); void push(KType e1); void push(KType e1, KType e2); void push(KType e1, KType e2, KType e3); void push(KType e1, KType e2, KType e3, KType e4); void push(KType[] elements, int start, int len); @SafeVarargs /* #end */ final void push(KType... elements); int pushAll(KTypeContainer<? extends KType> container); int pushAll(Iterable<? extends KTypeCursor<? extends KType>> iterable); void discard(int count); void discard(); KType pop(); KType peek(); @SafeVarargs /* #end */ static KTypeStack<KType> from(KType... elements); @Override KTypeStack<KType> clone();  }### Answer:
@Test public void testAddAllPushAll() { KTypeArrayList<KType> list2 = new KTypeArrayList<>(); list2.add(asArray(0, 1, 2)); stack.addAll(list2); stack.pushAll(list2); assertListEquals(stack.toArray(), 0, 1, 2, 0, 1, 2); }