The JVM configuration file jvm_default_conf.sh contains the most important path settings for the Java Virtual Machine (JVM). Use this script file to correctly configure paths such as LIBPATH, CLASSPATH, and LD_LIBRARY_PATH and to ensure the inclusion of all necessary resources.

In addition, the correct mainframe encoding for JZOS is set in this script and the location of the corresponding Jopaz property file is transferred to the environment variable IBM_JAVA_OPTIONS.