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

@@ -154,6 +154,10 @@ public void prepareReferenceBeans() throws Exception {
         for (ReferenceBean referenceBean : getReferences()) {
             initReferenceBean(referenceBean);
         }
+        // add a null check for moduleModel to be compatible with the native environment
+        if (moduleModel == null) {
+            setApplicationContext(applicationContext);
+        }
     }
 
     /**