There is evidence <https://stackoverflow.com/questions/15519891/neo4j-unsupported-java-runtime-use-jdk-6-ubuntu-12-04> on the internets that people are happily running neo4j with OpenJDK.
It's indeed a good question to ask the developers of neo4j why do they issue this warning, especially since OpenJDK is listed as a valid JVM in their system requirements <http://neo4j.com/docs/2.1.1/deployment-requirements/>. As Luca said you shouldn't use OracleJDK unless you have really good reasons to do so (weird warning from the developers is not a really good enough reason). If you worry about the warning you might try to search on the web or just ask the developers what issues may arise with OpenJDK. That said, it looks like neo4j requires a somewhat high limit on the number of open files, so “packaging” of neo4j won't be that simple—it will include some modifications to NixOS to accommodate this requirement. -- Кирилл Елагин On Tue, Jun 17, 2014 at 3:20 PM, Luca Bruno <[email protected]> wrote: > On 17/06/2014 13:18, Catonano wrote: > > So both Oracle JRE and Oracle Jdk are already present in the packages > > collection ? I had missed them ! > > > > Well, thanks ! > > > > I don't know exactly why neo4j requires Oracle, if you run it on > > openjdk it issues a warning that malfunctioning could arise. You > > should ask the neo4j people. > > > > I'll take a deep look at your suggestion later on > Always prefer openjdk because of being free software if there's no real > evidence of malfunctioning, especially if you are going to contribute > your neo4j nix expression to nixpkgs. > > Best regards, > _______________________________________________ > nix-dev mailing list > [email protected] > http://lists.science.uu.nl/mailman/listinfo/nix-dev >
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