private ReleaseId prepareKieModule() {
final KieServices ks = KieServices.Factory.get();
final ReleaseId releaseId = ks.newReleaseId("org.drools.compiler",
"severalKieSessionsTest", "1.0.0");
KieModuleModel module = ks.newKieModuleModel();
KieBaseModel baseModel = module.newKieBaseModel("defaultKBase");
baseModel.setDefault(true);
baseModel.addPackage("*");
baseModel.newKieSessionModel("defaultKSession").setDefault(true);