How to know if I am using Open JDK or Oracle JDK?

java openjdk jdk1.7 oraclejdk
Abhishek Singh picture Abhishek Singh · Nov 24, 2015 · Viewed 13.6k times · Source

Using java -version gives me this.

java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)

Is it an OpenJDK or OracleJDK ?

Answer

JFPicard picture JFPicard · Nov 24, 2015

I think that you're using OracleJDK.

As I saw with a google search, the openJDK --version output is like this:

java -version

openjdk version "1.8.0-internal"

OpenJDK Runtime Environment (build 1.8.0-internal-0)

OpenJDK 64-Bit Zero VM (build 25.0-b20-internal, interpreted mode)

See: http://mail.openjdk.java.net/pipermail/jdk8-dev/2013-July/002840.html

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