@Override public long get(long key1, long key2) {
        return super.get0(key1, key2);
    }
@Test
    public void testGotoAddress() {
        final long addr1 = hsa.address();
        final SlotAssignmentResult slot = insert(1, 2);
        hsa.gotoNew();
        assertEquals(NULL_ADDRESS, hsa.get(1, 2));
        hsa.gotoAddress(addr1);
        assertEquals(slot.address(), hsa.get(1, 2));
    }