Bug tracker is closed for regular users as we want to keep it clean. We once opened one smaller project for all and 90% of tickets were misreports, not bugs, badly written tickets, support requests, etc.
We don't have dedicated team of maintainers or developers here. All of people here are just volunteers/contributors doing something in their spare time. I don't remember anyone working on Mac version of Spark recently so probably - yes, we don't have mac developer at this time. Macs are becoming very popular, but in the open source world it is probably still a niche. I'm not a coder myself, but i remember some time ago a few contributors complaining about how Mac is handling Java. So probably it is a bit different, though Java ideally should be platform independent.
So, we can file a ticket for this and hope that someday a mac developer join the ranks and fix this (and many other tickets in the bug tracker related to Mac OS). Image may be NSFW.
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SPARK-1570
