The JDK's windows printing implementation is leaking GDI objects : 2 per job
seems typical but it's not a "per-job" leak.
Its observable in a process which creates and in some minimal way uses
one or more PrinterJobs as both a growth in native process size (not Java heap)
and in the windows task manager as a leak in GDI Objects (select the column
to view this).

A program as simple as this can demonstrate the problem:

import java.awt.print.*;

public class PT {

    public static void main(String[] args) {
        PrinterJob printerJob = PrinterJob.getPrinterJob();
        for (int i=0;i<10000;i++) {
            printerJob.defaultPage();
        }
    }
}