private List<StubFactory> getStubFactories() {
        if (this.stubFactories == null) {
            this.stubFactories = new ArrayList<>(this.applicationContext.getBeansOfType(StubFactory.class).values());
            this.stubFactories.add(new FallbackStubFactory());
        }
        return this.stubFactories;
    }
Lazy getter for the list of defined {@link StubFactory} beans.

@return A list of all defined {@link StubFactory} beans.
grpc-client-spring-boot-starter/src/main/java/net/devh/boot/grpc/client/inject/GrpcClientBeanPostProcessor.java