Customizing the version of Java on z/OS
Check the version of Java™ in your enterprise, and change it, if necessary.
About this task
This task is part of the larger task of customizing your z/OS® environment.
For information about the levels of Java that IBM® Integration Bus supports, see IBM Integration Bus system requirements. The 64 bit version of Java is required.
To check the current version of Java in an integration node component, complete the following steps.
- Change to the
bindirectory in which you installed your Java product.
For example, if Java is installed in
/usr/lpp/java, change to the
/usr/lpp/java/bindirectory, and type
./java -fullversion.You receive the following response, or a response with similar content:
The response in this example confirms that Java 1.7.0 is the current version, which is the minimum level required for this platform.
java version "1.7.0" Java(TM) 2 Runtime Environment, Standard Edition (build 1.7.0) Classic VM (build 1.7.0 J2RE 1.7.0 IBM z/OS Persistent Reusable VM build cm142-20040917 (JIT enabled: jitc))
- If you want to set, or change, the current Java version, edit
JAVAHOMEin the integration node profile (
For further details about the integration node profile, see Creating an integration node on z/OS.
BIPGENto re-create the integration node
ENVFILEand any integration server specific
- Restart the integration node to pick up changes