@Override
    public long getLong(int index) {
        checkIndex(index, 8);
        return _getLong(index);
    }
@Test
    public void testGetLongAfterRelease() {
        assertThrows(IllegalReferenceCountException.class, new Executable() {
            @Override
            public void execute() {
                releasedBuffer().getLong(0);
            }
        });
    }