Along with encouraging more JCP participation, Oracle is actively pushing forward the development of the Java SE platform with increased participation from the OpenJDK project. Oracle is committed to OpenJDK as the best open-source Java implementation and actively promotes community contribution to the project. Today there are more than 30 OpenJDK projects lead by a wide range of community members and employees of companies like AMD, Apple, IBM, Red Hat, SAP, and Oracle. In addition, OpenJDK has strong representation from academics, open-source operating system distribution developers, and individual software developers. The increased push to promote the OpenJDK effort has been highly effective in attracting talented contributors.
Quote from an article titled "Oracle's Stewardship of Java".