IDC has published a Technology Assessment of Oracle's stewardship of Java titled "The State of Java: Two and a Half Years After the Acquisition." The overall IDC opinion is that Java under Oracle's stewardship is thriving.

Report highlights include:

• The successful delivery of Java SE 7, which had been stalled at Sun Microsystems
• Articulation of realistic road maps for Java EE 7 and Java SE 8
• The healthy growth of the Java ecosystem
• The decisiveness with which Oracle handled the Apache Harmony dispute
• Key vendors joining the OpenJDK including IBM, Apple, and SAP
• More and more programming languages being hosted on the Java Virtual Machine(JVM)
  
• Java's role in major computing trends including Mobile, Cloud, Big Data and Social

You can access the full report here (PDF).