public Runnable waitForNextGraphGeneration(Injector discInjector, boolean isInitializing) {
        Container.ComponentGraphResult result = container.waitForNextGraphGeneration(
                this.currentGraph,
                createFallbackInjector(vespaContainer, discInjector),
                isInitializing);
        this.currentGraph = result.newGraph();
        return result.oldComponentsCleanupTask();
    }
Wait for new config to arrive and produce the new graph
@return Task for deconstructing previous component graph and bundles
container-core/src/main/java/com/yahoo/container/core/config/HandlersConfigurerDi.java