Java™ on the iSeries™ server no longer supports creating more than one Java virtual machine (JVM) within a single job or process. This restriction affects only those users who create JVMs by using the Java Native Interface Invocation (JNI) API. This change in support does not affect how you use the java command to run your Java programs.
You cannot successfully call JNI_CreateJavaVM() more than once in a job, and JNI_GetCreatedJavaVMs() cannot return more than one JVM in a list of results.
Support for creating only a single JVM within a single job or process follows the standards of the Sun Microsystems, Inc. reference implementation of Java.