Porting a java application that uses MIDI resources to snappy

Matthew Aguirre matt.aguirre at gmail.com
Sun May 15 00:38:09 UTC 2016

I think you posted to my askubuntu question concerning Swing and snapd.
Now I have to ask, how did you get Swing to show? I'm getting an error that
I think stems from openjdk-8-jre-headless being installed where I want
openjdk-8-jre to be installed instead.

sun.awt.fontconfiguration.getversion nullpointerexception

Is there a way to tell snapcraft to install certain packages?  And where do
I put that?  I would assume in some stage portion.

On Thu, May 12, 2016 at 9:14 AM, Donald Gray <donald.g.gray at btinternet.com>

> Hi,
> I have ported my java music making application, audovia, to a snap but
> when I try to play back music I get the following message.
> Exception - The MIDI System cannot instantiate a sequencer. ... Find
> resources for using MIDI on your specific system. The exception message
> from MidiSystem.getSequencer() is: Can not open line
> The application does not use any special sound cards or drivers and it
> runs perfectly well outside the snap.
> It looks like a snap.yaml plug is required to allow the snap to access the
> sound resources on the laptop.
> Any help or advice would be appreciated.
> Kind Regards.
> Donald Gray
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