Make Universal Media Server (UMS) Headless on Mac

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I added this to /Library/LaunchAgents/, you need to give it the correct ownership and permission:

sudo chown root:wheel /Libary/LaunchAgents/com.universalmediaserver.ums.plist
sudo chmod 644 /Libary/LaunchAgents/com.universalmediaserver.ums.plist

Or add it directly to ~/Library/LaunchAgents/ in which case i guess setting ownership and permission might not be necessary.

Either way you can always debug with the excellent launchcontrol app, install it using:
brew cask install launchcontrol

I have configured log info to go to /tmp/ums*

If I'm not mistaken the default config for the headless UMS can be changed in ~/Library/Application Support/UMS/UMS.conf

I'm using Java 8 and macOS Sierra and everything works great.

com.universalmediaserver.ums.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Label</key>
	<string>com.universalmediaserver.ums</string>
	<key>ProgramArguments</key>
	<array>
		<string>/usr/bin/java</string>
		<string>-Djava.awt.headless=true</string>
		<string>-jar</string>
		<string>/Applications/Universal Media Server.app/Contents/Java/ums-6.5.1-jar-with-dependencies.jar</string>
		<string>headless</string>
	</array>
	<key>RunAtLoad</key>
	<true/>
	<key>StandardErrorPath</key>
	<string>/tmp/ums-error.log</string>
	<key>StandardOutPath</key>
	<string>/tmp/ums.log</string>
	<key>WorkingDirectory</key>
	<string>/Applications/Universal Media Server.app/Contents/Resources</string>
</dict>
</plist>