Fix Infinispan adapter not checking updated value in getAttribute methods

Closes #12819

model/infinispan/src/main/java/org/keycloak/models/cache/infinispan/GroupAdapter.java

@@ -138,6 +138,7 @@ public class GroupAdapter implements GroupModel {
 
     @Override
     public Stream<String> getAttributeStream(String name) {
+        if (isUpdated()) return updated.getAttributeStream(name);
         List<String> values = cached.getAttributes(modelSupplier).get(name);
         if (values == null) return Stream.empty();
         return values.stream();
@@ -145,6 +146,7 @@ public class GroupAdapter implements GroupModel {
 
     @Override
     public Map<String, List<String>> getAttributes() {
+        if (isUpdated()) return updated.getAttributes();
         return cached.getAttributes(modelSupplier);
     }
 

testsuite/model/src/test/java/org/keycloak/testsuite/model/group/GroupModelTest.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2022 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.testsuite.model.group;
+
+import org.junit.Test;
+import org.keycloak.models.Constants;
+import org.keycloak.models.GroupModel;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.models.RealmModel;
+import org.keycloak.testsuite.model.KeycloakModelTest;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.contains;
+import static org.hamcrest.Matchers.equalTo;
+
+public class GroupModelTest extends KeycloakModelTest {
+
+    private String realmId;
+    private static final String OLD_VALUE = "oldValue";
+    private static final String NEW_VALUE = "newValue";
+
+    @Override
+    public void createEnvironment(KeycloakSession s) {
+        RealmModel realm = s.realms().createRealm("realm");
+        realm.setDefaultRole(s.roles().addRealmRole(realm, Constants.DEFAULT_ROLES_ROLE_PREFIX + "-" + realm.getName()));
+        this.realmId = realm.getId();
+    }
+
+    @Override
+    public void cleanEnvironment(KeycloakSession s) {
+        s.realms().removeRealm(realmId);
+    }
+
+    @Test
+    public void testGroupAttributesSetter() {
+        String groupId = withRealm(realmId, (session, realm) -> {
+            GroupModel groupModel = session.groups().createGroup(realm, "my-group");
+            groupModel.setSingleAttribute("key", OLD_VALUE);
+
+            return groupModel.getId();
+        });
+        withRealm(realmId, (session, realm) -> {
+            GroupModel groupModel = session.groups().getGroupById(realm, groupId);
+            assertThat(groupModel.getAttributes().get("key"), contains(OLD_VALUE));
+
+            // Change value to NEW_VALUE
+            groupModel.setSingleAttribute("key", NEW_VALUE);
+
+            // Check all getters return the new value
+            assertThat(groupModel.getAttributes().get("key"), contains(NEW_VALUE));
+            assertThat(groupModel.getFirstAttribute("key"), equalTo(NEW_VALUE));
+            assertThat(groupModel.getAttributeStream("key").findFirst().get(), equalTo(NEW_VALUE));
+
+            return null;
+        });
+    }
+
+}