Fix additionalConfiguration not mapped during YAML IdP bootstrap

server/src/main/java/org/cloudfoundry/identity/uaa/provider/oauth/OauthIDPWrapperFactoryBean.java

@@ -148,6 +148,7 @@ protected void setCommonProperties(Map<String, Object> idpDefinitionMap, Abstrac
         idpDefinition.setTokenKey((String) idpDefinitionMap.get("tokenKey"));
         idpDefinition.setIssuer((String) idpDefinitionMap.get("issuer"));
         idpDefinition.setAttributeMappings((Map<String, Object>) idpDefinitionMap.get(ATTRIBUTE_MAPPINGS));
+        idpDefinition.setAdditionalConfiguration((Map<String, Object>) idpDefinitionMap.get("additionalConfiguration"));
         idpDefinition.setScopes((List<String>) idpDefinitionMap.get("scopes"));
         idpDefinition.setUserPropagationParameter((String) idpDefinitionMap.get("userPropagationParameter"));
         idpDefinition.setGroupMappingMode(parseExternalGroupMappingMode(idpDefinitionMap.get("groupMappingMode")));

server/src/test/java/org/cloudfoundry/identity/uaa/provider/oauth/OauthIdentityProviderDefinitionFactoryBeanTest.java

@@ -119,6 +119,22 @@ void external_group_mapping_default_in_body() {
         assertThat(providerDefinition.getGroupMappingMode()).isNull();
     }
 
+    @Test
+    void additionalConfigurationIsMapped() {
+        Map<String, Object> additionalConfiguration = map(
+                entry("origin_override", map(entry("uaa", "uaa")))
+        );
+        idpDefinitionMap.put("additionalConfiguration", additionalConfiguration);
+        factoryBean.setCommonProperties(idpDefinitionMap, providerDefinition);
+        assertThat(providerDefinition.getAdditionalConfiguration()).containsExactlyInAnyOrderEntriesOf(additionalConfiguration);
+    }
+
+    @Test
+    void additionalConfigurationIsNullWhenNotProvided() {
+        factoryBean.setCommonProperties(idpDefinitionMap, providerDefinition);
+        assertThat(providerDefinition.getAdditionalConfiguration()).isNull();
+    }
+
     @Test
     void jwtClientAuthenticationTrue() {
         Map<String, Map> definitions = new HashMap<>();