fix(native): Resolve NullPointerException in ReferenceBeanManager

This commit adds a defensive null-check for `moduleModel`. If it is null, it retrieves the model explicitly using `DubboBeanUtils.getModuleModel()` to prevent the `NullPointerException` and ensure stable initialization in native builds.

fixes: #15663
Signed-off-by: Kyounghoon Jang <[email protected]>

Author: kyounghunJang

dubbo-config/dubbo-config-spring/src/main/java/org/apache/dubbo/config/spring/reference/ReferenceBeanManager.java

@@ -192,6 +192,11 @@ public synchronized void initReferenceBean(ReferenceBean referenceBean) throws E
             // cache referenceConfig
             referenceConfigMap.put(referenceKey, referenceConfig);
 
+            // add a null check for moduleModel to be compatible with the native environment
+            if (moduleModel == null) {
+                moduleModel = DubboBeanUtils.getModuleModel(applicationContext);
+            }
+
             // register ReferenceConfig
             moduleModel.getConfigManager().addReference(referenceConfig);
             moduleModel.getDeployer().setPending();