Customers on z/OS can now install IBM Semeru Runtime Certified Edition for z/OS, Version 11 (Java 11) onto WebSphere Liberty with IBM Installation Manager from the online product repository. (A previous article describes how to install it from downloaded repositories.)
February 2025: Customers can also install IBM Semeru Runtime Certified Edition for z/OS, Versions 17 and 21 using the procedures below. Unless otherwise specified, just change 11 to 17 or 21, respectively.
Installation Procedure
1. Edit and submit the IBM Installation Manager sample job GIN3CRED or the WebSphere Application Server sample job BBO1CRED to create credentials files for accessing the online repository at ibm.com.
2. Identify the Liberty filesystem to which you want to add Java 11 and mount the filesystem, read/write, at its original installation mountpoint. The filesystem will need approximately 500MB of free space for Java 11.
4. Run the following Installation Manager command:
/global/instmgr/bin/eclipse/tools/imcl
install com.ibm.java.jdk.v11
-installationDirectory /global/instmgr/products/WebSphere/Liberty/22.0.0.12
-repositories
http://www.ibm.com/software/repositorymanager/com.ibm.java.jdk.v11
-secureStorageFile ~/im.ssf
-masterPasswordFile ~/im.mpw
-acceptLicense
Adjust the installation directory path. You can also proxy information if it is necessary to access the internet from your z/OS system. By default, the latest level of the runtime will be installed.
5. Unmount the Liberty filesystem and remount read-only. IBM Semeru Runtime Certified Edition for z/OS, Version 11 will now be installed in the {Liberty runtime}/java/J11.0_64 directory.
Sample installation and uninstallation jobs for IBM Semeru Runtime Certified Edition for z/OS, Versions 11, 17,m and 21 have been added to the downloadable sample jobs for WebSphere Application Server:
Version 8.5 sample jobs
Version 9.0 sample jobs