protected boolean tryProcess(int ordinal, @Nonnull Object item) throws Exception {
        throw new UnsupportedOperationException("Missing implementation in " + getClass());
    }
@Test(expected = UnsupportedOperationException.class)
    public void when_tryProcess_then_unsupportedOperation() throws Exception {
        nothingOverriddenP.tryProcess(ORDINAL_0, MOCK_ITEM);
    }