The issue is reproduced with jdk 11.0.16.1 and is not reproduced with jdk-11.0.2.

Steps to reproduce:
- Run the attached WrongPaperForBookPrintingTest class on macOS
- Select Save as PDF on the print dialog
- Type the pdf name and press Save button

The page is not saved as PDF. It is sent to printer.

The code uses `PrinterJob.print(...)` with attributes:
```
            PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
            aset.add(Chromaticity.MONOCHROME);

            if (job.printDialog()) {
                job.print(aset); // print with attributes
            }
```

Changing `job.print(aset)` to `job.print()` allows to save the content to pdf