On Mon, 28 Mar 2022 16:05:34 GMT, Alexander Scherbatiy <[email protected]>
wrote:
>> The issue is reproduced on macOS Big Sur 11.0.1 with jdk 16.0.1+9.
>>
>> Create a native macOS app from the Hello.java file, sign and run it in
>> sandbox:
>>
>> import javax.print.*;
>> import javax.swing.*;
>>
>> public class Hello {
>>
>> public static void main(String[] args) throws Exception {
>> SwingUtilities.invokeAndWait(() -> {
>> boolean isSandboxed = System.getenv("APP_SANDBOX_CONTAINER_ID")
>> != null;
>> PrintService defaultPrinter =
>> PrintServiceLookup.lookupDefaultPrintService();
>> PrintService[] services =
>> PrintServiceLookup.lookupPrintServices(null, null);
>>
>> StringBuilder builder = new StringBuilder();
>> builder.append("is sandboxed:
>> ").append(isSandboxed).append("\n");
>> builder.append("default printer:
>> ").append(defaultPrinter).append("\n");
>> int size = services.length;
>> for (int i = 0; i < size; i++) {
>>
>> builder.append("printer[").append(i).append("]=").append(services[i]).append("\n");
>> }
>> JOptionPane.showMessageDialog(null, builder.toString());
>> });
>> }
>> }
>>
>> The signed app in sandbox shows null default printer and
>> PrintServiceLookup.lookupPrintServices(null, null) returns "Unix Printer:
>> lp".
>> 
>>
>> The problem has been discussed on 2d-dev mail list:
>> https://mail.openjdk.java.net/pipermail/2d-dev/2017-June/008375.html
>> https://mail.openjdk.java.net/pipermail/2d-dev/2017-July/008418.html
>>
>> According to the discussion:
>>
>>> I've submitted a DTS incident to Apple and a friend there has followed-up.
>>> Their unofficial position is that java should be connecting to the cups
>>> interface returned
>>> by the cupsServer() function and not changing the interface string to
>>> "localhost".
>>> Security changes in 10.12.4 reject the TCP connection which they say
>>> confuses
>>> network-client access with print access. They don't seem interested in
>>> loosening that change.
>>
>>
>> The proposed solution is to use the domain socket pathname in
>> httpConnect(...) cups function and cupsGetDests(...) to get list of printers
>> from cups when the app is signed and is run in sandbox on MacOs.
>
> Alexander Scherbatiy has updated the pull request incrementally with one
> additional commit since the last revision:
>
> Remove JNU_ThrowOutOfMemoryError from getCupsDefaultPrinters()
Marked as reviewed by prr (Reviewer).
-------------
PR: https://git.openjdk.java.net/jdk/pull/4861
