- [ ] 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
```
return application(builder.build());
    }
    /**
     * Set the {@link ApplicationConfig}
     *
     * @param applicationConfig the {@link ApplicationConfig}
     * @return current {@link DubboBootstrap} instance
     */
    public DubboBootstrap application(ApplicationConfig applicationConfig) {
        configManager.setApplication(applicationConfig);
        return this;
    }
    
    /**
     * Add an instance of {@link RegistryConfig} with {@link #DEFAULT_REGISTRY_ID default ID}
     *
     * @param consumerBuilder the {@link Consumer} of {@link RegistryBuilder}
     * @return current {@link DubboBootstrap} instance
     */
    public DubboBootstrap registry(Consumer<RegistryBuilder> consumerBuilder) {
        return registry(DEFAULT_REGISTRY_ID, consumerBuilder);
    }
    /**
     * Add an instance of {@link RegistryConfig} with the specified ID
     *
     * @param id              the {@link RegistryConfig#getId() id}  of {@link RegistryConfig}
     * @param consumerBuilder the {@link Consumer} of {@link RegistryBuilder}
     * @return current {@link DubboBootstrap} instance
     */
    public DubboBootstrap registry(String id, Consumer<RegistryBuilder> consumerBuilder) {