brainchime.com Latest Questions

Admin
Asked: 2024-10-06T04:58:15+05:30 In:

How to check the installed Java version on the IBM i machine?

I have logged in to the IBM I machine and I have to check the installed Java version on my IBM i machine so that I can make a check based on the Java version installed and execute some logic. Any idea how can I find it?

as400

Related Questions

Leave an answer

Leave an answer

Browse
Browse

Choose from here the video type.

Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs".

3 Answers

  1. Admin

    You can print the output of the RUNJVA command to get the installed Java version on IBM i by running runjva class(*version) output(*print) command from the command line.

    Please note that this RUNJVA command will be executed in a separate batch Job on IBM i where the Job name QJVACMDSRV is fixed and the user name is your user profile and the number is auto-generated. The output gets printed to the QPRINT spool file in the same batch job.

    java version "1.8.0_411" 
Java(TM) SE Runtime Environment (build 8.0.8.25 - pap6480sr8fp25-20240328_01(SR8 FP25)) 
IBM J9 VM (build 2.9, JRE 1.8.0 OS/400 ppc64-64-Bit Compressed References 20240305_66992 (JIT enabled, AOT enabled) 
OpenJ9 - e3126d7 
OMR - f2f50a8 
IBM - b81b1e2) 
JCL - 20240322_01 based on Oracle jdk8u411-b09 
Java program completed
  2. Admin

    You can also check the installed Java version on IBM i by running qsh cmd('java -version') command on the IBM i command line which invokes the Qshell environment and checks the Java version from within the shell.

    The output you will get:

    java version "1.8.0_411" 
Java(TM) SE Runtime Environment (build 8.0.8.25 - pap6480sr8fp25-20240328_01(
SR8 FP25)) 
IBM J9 VM (build 2.9, JRE 1.8.0 OS/400 ppc64-64-Bit Compressed References 202
40305_66992 (JIT enabled, AOT enabled) 
OpenJ9 - e3126d7 
OMR - f2f50a8 
IBM - b81b1e2) 
JCL - 20240322_01 based on Oracle jdk8u411-b09 
Press ENTER to end the terminal session.

    Please note that if multiple versions of Java are installed, this will show the default Java version in use.

  3. Admin

    You can execute the RUNJVA command on the IBM i which is used to run Java commands on the IBM i machine.

    When you run RUNJVA CLASS(*VERSION), it will display the installed Java version on your IBM i machine.

    The output of this command would look like:

    Java Shell Display

    java version "1.8.0_411"
Java(TM) SE Runtime Environment (build 8.0.8.25 - pap6480sr8fp25-20240328_01(SR8 FP25))
IBM J9 VM (build 2.9, JRE 1.8.0 OS/400 ppc64-64-Bit Compressed References 20240305_66992 (JIT enabled, AOT enabled)
OpenJ9 - e3126d7
OMR - f2f50a8
IBM - b81b1e2)
JCL - 20240322_01 based on Oracle jdk8u411-b09
Java program completed

    Here, as per the above output, the Java version is 1.8.0_411 which is a specific build of Java 1.8 (Java 8).