Comment # 2 on bug 927365 from Wolfgang Bauer

And what are you after?

I hope you do know that Oracle's JDK rpms are not provided by openSUSE...
Complain to Oracle.

Btw, they are installable in openSUSE, see the forum thread you mentioned.
Feel free to ask there, or have a look at
https://en.opensuse.org/SDB:Installing_Java