"Chris Mason, an engineer working on ReiserFS for SUSE at the time, joined Oracle later that year and began work on a new file system based on these B-trees."
> Looking through that list, most of the big projects (OpenJDK, Mysql, Opengrok) were inherited as part of acquisitions.
I see this argument a lot, but I'm not sure how it detracts from their continued development. Oracle funds many engineers working on OSS and, despite having CLAs in place, retain the permissive license for most of them. In some cases they've acquired closed source software and made it open source (e.g., JRockit stuff). They're a major contributor to OSS.
https://opensource.oracle.com/ (almost endless list)
But then they have take FLOSS projects and abandoned them, see OOo for instance:
https://en.wikipedia.org/wiki/Apache_OpenOffice#/media/File:...