I don't really see how a lot of the responses here match with the original blog post. People seem to be airing a lot of long-standing grievances about Oracle rather than responding to the specific post on its own. Viewed on its own, the post can basically be summarized as "Please stop treating our products like they are open source. They're not, and it is against the license agreement to reverse engineer our stuff to…
I don't think it's the lack of open-source code that is causing the grievances but rather the tone of the blog post and the overall theme of "Our IP is more important then your security concerns, no we don't care if you are a core bank". Microsoft, SAP, VMware all have closed source software that is very prevalent in enterprise, often in entrenched positions just like Oracle. Sure they aren't exactly all peaches eith…
But that isn't what it says, at all. It even explicitly says that if you do find a security flaw this way they will still fix it.
But the main point is that you can't do anything by reverse engineering the source code that they aren't already doing, and doing better than you because they have the actual source code.