[http-client-java] mgmt premium, fix sample entry point and serviceClient reference for autorest

.chronus/changes/java_mgmt_premium_sample_service_client-2026-2-19-9-20-23.md

@@ -0,0 +1,8 @@
+---
+# Change versionKind to one of: internal, fix, dependencies, feature, deprecation, breaking
+changeKind: fix
+packages:
+  - "@typespec/http-client-java"
+---
+
+mgmt premium, fix sample entry point and serviceClient reference

cspell.yaml

@@ -155,6 +155,7 @@ words:
   - mqtt
   - mros
   - msbuild
+  - msgraph
   - mspaint
   - MSRC
   - msrest

packages/http-client-java/generator/http-client-generator-mgmt/src/main/java/com/microsoft/typespec/http/client/generator/mgmt/model/clientmodel/examplemodel/FluentClientMethodExample.java

@@ -15,6 +15,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 
 /**
  * Model of example for service client method (usually for Fluent Premium).
@@ -92,7 +93,13 @@ public String getMethodReference() {
             throw new IllegalStateException("Package '" + namespace + "' is not supported by Fluent Premium");
         }
 
-        String serviceClientReference = ModelNaming.METHOD_SERVICE_CLIENT + "()";
+        String serviceClientReference;
+        Optional<String> metadataSuffix = FluentStatic.getFluentJavaSettings().getMetadataSuffix();
+        if (metadataSuffix.isPresent() && SECONDARY_SERVICE_CLIENT_ACCESSOR.containsKey(metadataSuffix.get())) {
+            serviceClientReference = SECONDARY_SERVICE_CLIENT_ACCESSOR.get(metadataSuffix.get()) + "()";
+        } else {
+            serviceClientReference = ModelNaming.METHOD_SERVICE_CLIENT + "()";
+        }
         String methodGroupReference = "get" + CodeNamer.toPascalCase(methodGroup.getVariableName()) + "()";
         return serviceClientReference + "." + methodGroupReference;
     }
@@ -128,4 +135,30 @@ public String getMethodName() {
         MANAGER_REFERENCE.put("storage", "storageAccounts()");
         MANAGER_REFERENCE.put("trafficmanager", "trafficManagerProfiles()");
     }
+
+    // Maps metadata-suffix (from secondary specs in multi-spec packages) to the service client
+    // accessor method on the SDK Manager class. When a secondary spec shares a Manager with the
+    // primary spec, serviceClient() returns the primary inner client. This map provides the correct
+    // accessor for the secondary inner client.
+    // Source of truth:
+    // https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/resourcemanager/api-specs.json
+    private static final Map<String, String> SECONDARY_SERVICE_CLIENT_ACCESSOR = new HashMap<>();
+    static {
+        // resources package secondaries (ResourceManager)
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("feature", "featureClient");
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("policy", "policyClient");
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("lock", "managementLockClient");
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("subscription", "subscriptionClient");
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("change", "resourceChangeClient");
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("databoundary", "dataBoundaryClient");
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("deployments", "deploymentClient");
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("deploymentstacks", "deploymentStackClient");
+        // appservice package secondaries (AppServiceManager)
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("certificateregistration", "certificateRegistrationClient");
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("domainregistration", "domainRegistrationClient");
+        // containerregistry package secondary (ContainerRegistryManager)
+        SECONDARY_SERVICE_CLIENT_ACCESSOR.put("registrytasks", "taskClient");
+        // authorization: msgraph uses default serviceClient() (AuthorizationManager implements
+        // HasServiceClient<MicrosoftGraphClient>), no override needed
+    }
 }