- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
- [ ] I have checked the [FAQ](https://github.com/apache/dubbo/blob/master/FAQ.md) of this repository and believe that this is not a duplicate.

### Environment

* Dubbo version: 2.7.4.1
* Java version: 1.8

### Actual Result

[https://github.com/apache/dubbo/blob/839d2a604e629ea9e96b964be09ae221e85312ba/dubbo-common/src/main/java/org/apache/dubbo/rpc/model/ApplicationModel.java#L80](https://github.com/apache/dubbo/blob/839d2a604e629ea9e96b964be09ae221e85312ba/dubbo-common/src/main/java/org/apache/dubbo/rpc/model/ApplicationModel.java#L80)

### Expected Result

```
initFrameworkExts
```
if (CollectionUtils.isEmpty(serviceConfigs)) {
            return this;
        }
        serviceConfigs.forEach(configManager::addService);
        return this;
    }
    
    public <S> DubboBootstrap reference(Consumer<ReferenceBuilder<S>> consumerBuilder) {
        return reference(DEFAULT_REFERENCE_ID, consumerBuilder);
    }
    public <S> DubboBootstrap reference(String id, Consumer<ReferenceBuilder<S>> consumerBuilder) {
        ReferenceBuilder builder = createReferenceBuilder(id);
        consumerBuilder.accept(builder);
        return reference(builder.build());
    }
    public DubboBootstrap reference(ReferenceConfig<?> referenceConfig) {
        configManager.addReference(referenceConfig);
        return this;
    }
    public DubboBootstrap references(List<ReferenceConfig> referenceConfigs) {
        if (CollectionUtils.isEmpty(referenceConfigs)) {
            return this;
        }
        referenceConfigs.forEach(configManager::addReference);
        return this;
    }
    
    public DubboBootstrap provider(Consumer<ProviderBuilder> builderConsumer) {
        return provider(DEFAULT_PROVIDER_ID, builderConsumer);
    }