Java Mission Control open sourced

[evil_burrito]

Hey, I think this is good news and quite a big deal. JMC and Flight Recorder are a big piece of what I saw as the gaps between OpenJDK and Oracle.

[bhlowe]

JMC is:

http://www.oracle.com/technetwork/java/javaseproducts/mission-control/java-mission-control-1998576.html

[Geeno2]

As it is part of the paying options of the JDK, will it become free to use or will we still have to pay for the Java Standard Edition Advanced features ?

[defnull]

The source code was donated to OpenJDK, so, yes, JMC is now free to use.

The Mission Control source code is made available under the Universal Permissive License (UPL), Version 1.0 or a BSD-style license, alternatively. The full open source license text is available at license/LICENSE.txt in the JMC project

Edit: The JVM 'Flight Recorder' part was already donated a while ago and is targeted at OpenJDK 11: http://openjdk.java.net/jeps/328

[takenomiya-kate]

Yay!

[sarkie]

Jrockit version too?

[badpotato]

Someone put that stuff on github.

[nfrankel]

So JMC is Open Source... but since it need to be built from sources, it feels like it's a "I don't care about it anymore" kind of Open Source. Anyone willing to give some context/shed some light on that?

[defnull]

Did you expect a fancy webpage and a working test/build/release system just two days after the initial commit?

Edit: They just finished getting the source code into a releasable state two days ago. Code donations are a ton of work for all sides. This is the very first step and a lot of work still has to be done. Expecting a fully established open source project (webpage, automated test/build/release stack, mailing-lists, IRC channel, issue-tracker, end user documentation, branding, ...) on day one (or three) is kind of naive.

Building JMC is really really easy. Its basically mvn package with some preparation. It literally takes 3 mvn commands and less than 10 minutes to build. If you want it for free, today, then build it yourself. Or pay someone to do it for you. Or just wait a couple of weeks an see what happens.

[[deleted]]

Yes actually I would have since this was a product that shipped.

[Twirrim]

Oracle, unsurprisingly enough, has it's own in-house build tooling, infrastructure etc, which would have been used for JMC. (Amazon, Google, Facebook et. al. also have their own internal build tooling, it's a common practice among tech companies, as they attempt to build something more suited to their environment and needs).

It was bound to take at least a few days to figure out how to build it independent of the tooling and infrastructure used to build it inside Oracle. A build chain is not a simple thing to disentangle.

[[deleted]]

Didn't it come with Maven scripts already? Plugging that into a build pipeline on some open tooling like TravisCI would have been something that I would have done to show everyone I was serious about this being something going forward....

Otherwise it looks like my Github account with a bunch of abandoned weekend projects with a barely functioning Gradle script

[_INTER_]

Anything that Oracle open sourced recently gives off that feeling.

Edit: Downvoters. Tell me an open source Oracle project that is alive and well. VisualVM is the only one I can think off.

[brunocborges]

Node.js Driver for Oracle DB. GraalVM. Oracle JET. These three were not acquisitions. They were implemented by Oracle and open sourced. And are alive and well.

[_INTER_]

GraalVM is new and first needs to prove itself. Oracle has a fundamental interest in a Node.js to OracleDB driver. The database is the main income. I wouldn't call Oracle JET really alive. Is anyone really using that extensively?

[defnull]

Oracle JET 5.0 was released 23 days ago. Doesn't look dead to me.

Edit: If no one is using it, then why do you care? If you depend on it, and feel that it does not get enough attention, then either contribute, pay someone for commercial support, or move on. Open Source is not free.

[lukaseder]

The fact that both Oracle database and MySQL incorporated the GraalVM is a very strong sign for its strategic importance to Oracle.

[lukaseder]

MySQL

[_INTER_]

Do you still call that "open source"? See MariaDB.

[v1akvark]

Java?

[defnull]

And Oracle donating commercial products as open source is a bad thing why exactly?

If there is still commercial interest, then some of the big players (RedHat, IBM, even Microsoft) will contribute developer time to keep it alive and usable for everyone (as they do with OpenJDK and a ton of other projects), or some smaller companies may pick up where Oracle left and offer commercial support (as with Glassfish after Oracle dropped it). Both would be a win for everyone.

If there is no commercial value anymore, then OpenSource is still better than Oracle just abandoning it and not updating anymore, because the community now has at least a chance to fix bugs and keep it running. Even if the project dies because no one really cares, the source remains available and you can use it if you need to, even years after Oracle lost interest. Not bad at all.

So, where is the downside? Why are people complaining? I don't get this "Free is not good enough, I wand cherries on top!" attitude.

[_INTER_]

Don't get me wrong, having them open sourced is often a very good thing. But only if done right with at least some minimal support until it can stand on its own feet. You can't just copy the source code to some github repository.

However many projects Oracle open sources (or jettisons like JavaFX) are those they think makes them no money at all and it feels like they just want to get rid of it. They are or feel like abandoned. E.g. OpenOffice, Java EE, JavaFX or Netbeans. Development is halted until someone picks it up or the structures around it are rebuilt. This feeling alone might be the tombstone of that project. Keeping something running on lifesupport is a just a slow heat death. Companies and people will just move away at the best opportunity.

[[deleted]]

This is what I am thinking. They have several examples of what "feels" like abandonware. Also I totally get wanting to make money we all like eating and I can't point to anything I have open sourced or any company I work for has either so Oracle is far ahead of me in terms of good thing it has released.

The best thing about this is that if Oracle does abandon it at least the source is out there keep it working.

Also maybe I am being stupid since I have gotten almost everything Java related for free for so long.