I am trying to print a small rectangle to an output stream using StreamPrintService. I am calling PrinterJob.lookupStreamPrintServices() and getting a list of factories. Then I am creating a StreamPrintservice out of one of the factories and passing the FileOutputStream. I have set this print service to the PrinterJob by calling PrinterJob.setPrintService() and I have set the printable also. When I open a native print dialog by calling PrintJob.printDialog() and click 'OK' on the print dialog, a ClassCastException is thrown on Win32 platform on JDK1.5.0-b05,06. But when I execute the same application on JDK1.5.0-b08, print dialog itself does not pop up and an IllegalArgumentException is thrown. On JDK1.5.0-b04 and before, this seems to work fine. This is reproducible only with the native dialog and hence on Win32 alone.
I tested this on Win NT and Win XP using a Xerox Docuprint N4025.

How to reproduce:
I have attached a sample code. Execute the sample code on the above mentioned builds and you would notice the following exceptions:

JDK1.5.0-b08:
java.lang.IllegalArgumentException: Invalid value for property printer or printer port
at sun.awt.windows.WPrintDialogPeer._show(Native Method)
at sun.awt.windows.WPrintDialogPeer.access$000(WPrintDialogPee
at sun.awt.windows.WPrintDialogPeer$1.run(WPrintDialogPeer.jav
at java.lang.Thread.run(Thread.java:534)

JDK1.5.0-b05, 06:
java.lang.ClassCastException: sun.print.PSStreamPrintService
at sun.awt.windows.WPrinterJob.setWin32MediaAttrib(WPrinterJob.java:1591)
at sun.awt.windows.WPrintDialogPeer._show(Native Method)
at sun.awt.windows.WPrintDialogPeer.access$000(WPrintDialogPeer.java:14)
at sun.awt.windows.WPrintDialogPeer$1.run(WPrintDialogPeer.java:39)
at java.lang.Thread.run(Thread.java:534)

The application works fine when PrintDialog is not popped up.