- [ ] 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
```
import org.apache.dubbo.common.lang.ShutdownHookCallback;
import org.apache.dubbo.common.lang.ShutdownHookCallbacks;
import org.apache.dubbo.common.logger.Logger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.common.threadpool.concurrent.ScheduledCompletableFuture;
import org.apache.dubbo.common.threadpool.manager.ExecutorRepository;
import org.apache.dubbo.common.utils.CollectionUtils;
import org.apache.dubbo.common.utils.StringUtils;
import org.apache.dubbo.config.ApplicationConfig;
import org.apache.dubbo.config.ConfigCenterConfig;
import org.apache.dubbo.config.ConsumerConfig;
import org.apache.dubbo.config.DubboShutdownHook;
import org.apache.dubbo.config.MetadataReportConfig;
import org.apache.dubbo.config.MetricsConfig;
import org.apache.dubbo.config.ModuleConfig;
import org.apache.dubbo.config.MonitorConfig;
import org.apache.dubbo.config.ProtocolConfig;
import org.apache.dubbo.config.ProviderConfig;
import org.apache.dubbo.config.ReferenceConfig;
import org.apache.dubbo.config.RegistryConfig;
import org.apache.dubbo.config.ServiceConfig;
import org.apache.dubbo.config.ServiceConfigBase;
import org.apache.dubbo.config.SslConfig;
import org.apache.dubbo.config.bootstrap.builders.ApplicationBuilder;
import org.apache.dubbo.config.bootstrap.builders.ConsumerBuilder;
import org.apache.dubbo.config.bootstrap.builders.ProtocolBuilder;
import org.apache.dubbo.config.bootstrap.builders.ProviderBuilder;
import org.apache.dubbo.config.bootstrap.builders.ReferenceBuilder;
import org.apache.dubbo.config.bootstrap.builders.RegistryBuilder;
import org.apache.dubbo.config.bootstrap.builders.ServiceBuilder;