ServiceRegistry lookup of legacy SingletonServiceBuilderFactory throws UnsupportedOperationException ---------------------------------------------------------------------------------------------------- Key: WFLY-10907 URL: https://issues.jboss.org/browse/WFLY-10907 Project: WildFly Issue Type: Bug Components: Clustering Affects Versions: 14.0.0.Beta2 Reporter: Paul Ferraro Assignee: Paul Ferraro Priority: Critical Legacy code will lookup a SingletonPolicy or SingletonServiceBuilderFactory using the deprecated ServiceController.awaitValue() or getValue() methods. Services installed using the new MSC service installation API will throw an UnsupportedOperationException in this case. Consequently, the services providing the legacy implementations of these deprecated APIs need to be installed using the deprecated MSC API to prevent migrated applications from unexpected UnsupportedOperationExceptions.