When an update in JD2 was triggered and it restarted, the docker stopped. The added script should:

a) prevent it
b) kill JD gradually, when docker stop is being executed on this container

startJD2.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+function stopJD2 {
+	PID=$(cat JDownloader.pid)
+	kill $PID
+	wait $PID
+	exit
+}
+
+trap stopJD2 EXIT
+
+java -Djava.awt.headless=true -jar JDownloader.jar
+
+while true; do
+	sleep inf
+done
+