[OpenJDK 2D-Dev]  RFR JDK-8034239, , PrintServiceLookup.lookupPrintServices() returns different amount of services in comparison with lpstat -v
prasanta.sadhukhan at oracle.com
Fri Mar 4 10:48:00 UTC 2016
Please review a print service fix for jdk9
The issue was lpstat -v was reporting 2 printer service but
PrintServiceLookup.lookupPrintServices() list only 1.
device for tta_printer: ipp://<internal-printer-ip>/printers/tta_printer
device for Xerox-WorkCentre-4250: socket://spb04p12.ru.oracle.com:9100
but lookupPrintServices() listed only "Xerox" printer and not
It seems "tta_printer" was added using
*lpadmin -p printer-name -E -v device -m ppd *
so it becomes a "Remote Printer" and even though Java sees that printer,
it calls getUnsupportedAttributes() on that printer service to see if
that printer matches the DocFlavor.
In this case, this remote printer does not have any supported doc flavor
listed so when getSupportedDocFlavors() is called, it does not see any
Although JDK-8040139 fixed this problem by adding
to the supported DocFlavors since as per spec,
as per spec
//it clearly says, /
/Array of supported doc flavors, should have at least one element./
the returned flavours are not populated to supported DocFlavors called
by IPPPrintService.java#getUnsupportedAttributes() ->
isDocFlavorSupported() so "supportedDocFlavors" was still false for this
I added a fix to populate the PAGEABLE & PRINTABLE docflavor to
"supportedDocFlavors" and tested in sqe machine and found it working.
I could not add a regression testcase as it involves adding a "remote
printer" using lpadmin command. I would add "noreg-sqe" to the bug.
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