IS services are stateless operations on a pipeline. Holding references to Java objects in the Integration Server pipeline is not supported. Make sure that the exposed operations do not depend on a Java objects’ holding state.

Application Platform and Integration Server use different class loaders, so object references are not transferred between them. Java objects that you use in a method signature must be Java Beans. The IS services that are generated will include signatures that use objects of type Document in order to represent the Java Bean objects.