How do I remove OpenJDK without losing JDownloader?

I recently installed Sun's Java because of performance issues running Minecraft.

When I try to remove the OpenJDK packages by

sudo apt-get purge openjdk*

however, the JDownloader package is being removed as well.If I try to remove all OpenJDK-7 packages one by one, OpenJDK-6 is being installed instead.

IMHO there should be a way to satisfy JDownloader's dependencies for a Java runtime environment with Sun's version.

Is there any way to keep JDownloader while completely removing the opensource Java versions?

EDIT: As explained by user tumbleweed, this issue was caused by a temporary bug which soon afterwards has been resolved.