f.java

String deploymentId = (String) ctx.getData("deploymentId");
RuntimeManager runtimeManager = RuntimeManagerRegistry.get().getManager(deploymentId);
if (runtimeManager == null) {
  throw new IllegalStateException("There is no runtime manager for deployment " + deploymentId);
}
RuntimeEngine engine = runtimeManager.getRuntimeEngine(ProcessInstanceIdContext.get());
KieSession ksession = engine.getKieSession();