Oracle has changed the way businesses order Java SE it went from one time to fee to a subscription. 

Oracle Blockchain Cloud Service is a new offering that is part of Oracle’s comprehensive platform-as-a service (PaaS) portfolio. Delivered by the world’s most scalable, distributed transaction processing platform provider, Oracle Blockchain Cloud Service is the most comprehensive distributed ledger cloud platform

This video provides an Oracle Database .NET Core introduction. Learn step by step how to develop a simple ODP.NET Core application and connect to the Oracle Database.  

The decision reached on March 27, 2018 was that:
Google’s use of the Java API packages was not fair as a matter of law. 

Today, a jury in California's Northern District federal court declared that Google's use of copyright-protected code in Android was fair use, freeing it of any liability.