- [ ] 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
```
ConfigValidationUtils.validateMetricsConfig(getMetrics());
        
        ConfigValidationUtils.validateModuleConfig(getModule());
        
        ConfigValidationUtils.validateSslConfig(getSsl());
    }
    private void startConfigCenter() {
        Collection<ConfigCenterConfig> configCenters = configManager.getConfigCenters();
        if (CollectionUtils.isNotEmpty(configCenters)) {
            CompositeDynamicConfiguration compositeDynamicConfiguration = new CompositeDynamicConfiguration();
            for (ConfigCenterConfig configCenter : configCenters) {
                configCenter.refresh();
                ConfigValidationUtils.validateConfigCenterConfig(configCenter);
                compositeDynamicConfiguration.addConfiguration(prepareEnvironment(configCenter));
            }
            environment.setDynamicConfiguration(compositeDynamicConfiguration);
        }
        configManager.refreshAll();
    }
    private void startMetadataReport() {
        ApplicationConfig applicationConfig = getApplication();
        String metadataType = applicationConfig.getMetadataType();
        
        Collection<MetadataReportConfig> metadataReportConfigs = configManager.getMetadataConfigs();
        if (CollectionUtils.isEmpty(metadataReportConfigs)) {
            if (REMOTE_METADATA_STORAGE_TYPE.equals(metadataType)) {
                throw new IllegalStateException("No MetadataConfig found, you must specify the remote Metadata Center address when 'metadata=remote' is enabled.");
            }
            return;