@Override
    public int getUnsignedShort(int index) {
        return getShort(index) & 0xFFFF;
    }
@Test
    public void testGetUnsignedShortAfterRelease() {
        assertThrows(IllegalReferenceCountException.class, new Executable() {
            @Override
            public void execute() {
                releasedBuffer().getUnsignedShort(0);
            }
        });
    }