Box Java SDK is in beta stage. Developers might notice changes over time. For now, the site offers Javadocs, authentication, and folders along with collaboration features with other members. Java SDK is an additional resource to the Box API available on the official site. With Box Java SDK, users can integrate storage, cloud, and file sharing characteristics into web applications.
Google App Engine, the PaaS offering from Google has a new release version 1.4.0 of its SDK, paying special attention to requests that developers have been putting it for a long time and removing limitations that received a wave of negative reactions. The new SDK addresses some of those concerns head on.