Not sure what exactly you mean, but they've open sourced the entire JDK, including Flight Recorder and Java mission control. They're selling support for the JD

Not sure what exactly you mean, but they've open sourced the entire JDK, including Flight Recorder and Java mission control. They're selling support for the JDK to companies that value that service. I'm guessing they're doing OK on that front, since the sorts of enterprises that typically buy support are their bread and butter.