When I run Android Studio with OpenJDK installed I get a warning recommending the use of Oracle JDK. Is Oracle JDK actually better or is it fine to just stick with OpenJDK? Installing Oracle JDK seems like a hassle compared to the simple sudo apt-get install default-jdk for OpenJDK. Are there any differences between the two I should be worried about?
Ubuntu – OpenJDK vs. Oracle JDK for Android Studio
androidjavajdkopenjdkoracle
Related Solutions
I'm using OpenJDK 7 with Android Studio and it works just fine. (I don't even have Oracle JDK installed at the moment.)
On that screen that you are showing (Project Structure-->SKD Location) I have the following path for the JDK location: /usr/lib/jvm/java-1.7.0-openjdk-amd64.
Install Oracle/Sun Java. See How can I install Sun/Oracle's proprietary Java JDK 6/7/8 or JRE? (and others) for details.
In a terminal session, run : sudo update-alternatives --config java
You will get a list that looks something like this:
As per the instructions at the prompt, enter the number corresponding to the version you want to be your system default Java implementation.
Once you've done that, unless there are configuration settings directing otherwise for particular applications (quite common), the Java version you've chosen will be your global system default.
I would definitely not recommend removing entirely the OpenJDK. There are any number of modules and applications that may be expecting OpenJDK to be there and are configured to use it - it's the default Java that comes with Ubuntu. Removing it may cause some serious problems. Leave it in place for those modules that expect it, because it is the default. You have set the default to what you want, and you can control the applications you are using to use that setting (in fact you can do it on an application by application basis without changing the system default at all) - but not everything is under your control, at least not without some serious expertise and mucking around.
Best Answer
I think that it depends on what you are going to be doing. There are probably some compatibility issues for random features. I have not run into any myself, but you may be better off using the JDK from Oracle. Webupd8 does a great job distributing the JDK via a PPA which makes it pretty easy to install on Ubuntu.