I still don’t see it. The linked page says almost nothing and the link on the linked page (Kaspersky) doesn’t say much either.
I’m not sure what you’re expecting to see?
An executable can be run remotely on the compromised system. In the screenshot, they fired off the Windows calculator to prove the concept, but the point is once Java has been compromised code other than Calc can be executed.
The Kaspersky site talks about how the vulnerability is exploited. Java is compromised after hitting a site that has the code for one of the mentioned exploit kits, such as Blackhole. Kaspersky says they are seeing multiple ad networks pointing to these sites, as well as some weather and news sites, etc. So there’s potential exposure to the vulnerability from a variety of sites.