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Oracle or Openjdk

  • 21-01-2015 01:59PM
    #1
    RebelButtMunch
    Registered Users, Registered Users 2 Posts: 2,432 ✭✭✭


    Hi

    From the cmd line does anyone know how to tell if the java version is oracle or openjdk?
    Thanks.
    Tagged:


Comments

  • #2
    duffman85
    Registered Users, Registered Users 2 Posts: 339 ✭✭duffman85


    java -version will tell you if you're using openjdk or not.
    This was on linux but you should see similar output for Windows: 
    # java -version
java version "1.7.0_75"
OpenJDK Runtime Environment (rhel-2.5.4.0.el6_6-i386 u75-b13)
OpenJDK Client VM (build 24.75-b04, mixed mode, sharing)
    On systems with Oracle JDK: 
    # java -version
java version "1.6.0_71"
Java(TM) SE Runtime Environment (build 1.6.0_71-b12)
Java HotSpot(TM) Server VM (build 20.71-b01, mixed mode)
    if you're using linux/unix - you can check the installed packages


  • #3
    croo
    Moderators, Technology & Internet Moderators Posts: 1,338 Mod ✭✭✭✭croo


    Also if you have multiple versions installed it might be worth double checking the JAVA_HOME and PATH values


  • #4
    RebelButtMunch
    Registered Users, Registered Users 2 Posts: 2,432 ✭✭✭RebelButtMunch


    duffman85 wrote: »
    java -version will tell you if you're using openjdk or not.
    This was on linux but you should see similar output for Windows: 
    # java -version
java version "1.7.0_75"
OpenJDK Runtime Environment (rhel-2.5.4.0.el6_6-i386 u75-b13)
OpenJDK Client VM (build 24.75-b04, mixed mode, sharing)
    On systems with Oracle JDK: 
    # java -version
java version "1.6.0_71"
Java(TM) SE Runtime Environment (build 1.6.0_71-b12)
Java HotSpot(TM) Server VM (build 20.71-b01, mixed mode)
    if you're using linux/unix - you can check the installed packages

    That did the trick thanks. It's the Oracle version I have (that doesn't actually mention oracle in the output :) )


  • #5
    ColdCotton
    Closed Accounts Posts: 5 ✭ColdCotton


    Is there any differences between oracle jdk and openjdk.


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