This list should really be archived as the port project is over ..
macos is just another one of the JDK desktop platforms.
So you should re-post this to 2d-...@openjdk.java.net which is the right
place to consider a patch too.
And perhaps file a bug at java.com since I don't know of any bug report
to this effect.
-phil.
On 6/1/17, 3:17 AM, Sean Reilly wrote:
There seems to be a big printing problem using recent JDKs when running within
the macOS sandbox as of 10.12.4.
Looking at the jdk8 sources, CUPSfuncs.c seems to ignore the connection point
provided by the system CUPS libraries if it returns a reference to a unix
domain socket address:
// Is this a local domain socket?
if (strncmp(server, "/", 1) == 0) {
cServer = JNU_NewStringPlatform(env, "localhost");
} else {
cServer = JNU_NewStringPlatform(env, server);
}
This causes the CUPSPrinter.java and CUPSfunc code to connect to localhost via
TCP port 631 instead of the unix domain socket which should be where it
connects.
MacOS Sierra 10.12.4 had some security related changes to the sandbox which
explicitly blocks connections from a sandboxed app to TCP localhost:631. This
blockage (or at least a very long delay) applies even if network-client,
network-server, and print entitlements are set for the app, which means there's
no way around the problem.
I've talked to Apple DTS and they aren't inclined to allow the connection to
localhost:631, even if the network-client and print entitlements are enabled.
As you can imagine, not being able to print from a desktop app is pretty bad
for business.
My questions are:
1) Is anyone at Oracle aware of and working on this?
2) Is there a reason not to use the unix domain socket connection? The
connection details seem to be encapsulated within the libcups code so I don't
see why the java level needs to override the result returned by the call to
`cupsServer`
3) Is a patch that uses the unix domain socket likely to be accepted, and if
so, where should it be sent?
4) Is there a better mailing list for this discussion?
Thanks,
Sean
