code: public static <Solution_> SolverFactory<Solution_> createFromKieContainerXmlResource(
              String solverConfigResource) {
          KieContainer kieContainer = KieServices.Factory.get().getKieClasspathContainer();
          return new XStreamXmlSolverFactory<Solution_>(new SolverConfigContext(kieContainer))
                  .configure(solverConfigResource);
      }
docs: Uses {@link KieServices#getKieClasspathContainer()}.
  @param solverConfigResource never null, a classpath resource in the {@link KieContainer}
  as defined by {@link ClassLoader#getResource(String)}
  @return never null