defaultBase.addPackage("*");
defaultBase.newKieSessionModel("defaultKSession").setDefault(true);
// define second kbase including resources of the first one
final String includingBaseName = "includingKBase";
KieBaseModel includingBase = module.newKieBaseModel(includingBaseName);
includingBase.setDefault(false);
includingBase.addInclude(defaultBaseName);
includingBase.newKieSessionModel("includingKSession").setDefault(false);
kfs.writeKModuleXML(module.toXML());