So, you have a server side Java application and you need to be able to authenticate your users without the hassle? Then App ID is for you. There's no easier way to create a scalable app than to use the nimble IBM WebSphere Liberty application server in a Docker image and run it with IBM Cloud Container Service.
There are several cases where it is useful to be able to stand up additional WebSphere capacity for a limited time period, without needing to worry about data center server capacity and software licenses. Typical examples include batch type workloads, test of new code at infrequent intervals, maybe as part of an overall application modernization strategy.