Oracle is a major player in the world of Java technology. They are known for several Java-related offerings and contributions. Here are some key aspects of Oracle’s involvement with Java:

1. Oracle JDK (Java Development Kit): Oracle provides its own distribution of the Java Development Kit, known as Oracle JDK. This JDK includes various tools and libraries for Java development. Historically, Oracle JDK was the reference implementation of the Java Platform, Standard Edition (Java SE). However, in recent years, Oracle has transitioned to a new subscription-based licensing model for commercial use of Oracle JDK, while continuing to offer free downloads for development and testing purposes.

2. OpenJDK: Oracle is a key contributor to the OpenJDK project, which is the open-source reference implementation of the Java platform. OpenJDK is the basis for many other Java distributions, including Oracle JDK. Oracle’s contributions to OpenJDK help shape the future of the Java language and platform. OpenJDK is available under an open-source license and is the foundation for many free and commercial Java distributions.

3. Java EE (Enterprise Edition): Oracle was a major contributor to Java EE, a platform for building enterprise-grade Java applications. However, in 2017, Oracle transferred stewardship of Java EE to the Eclipse Foundation, which renamed it Jakarta EE. Jakarta EE continues to be an important platform for developing enterprise Java applications.

4. Java Community Process (JCP): Oracle plays a significant role in the Java Community Process, which is the mechanism for developing and revising Java specifications and standards. The JCP allows various organizations and individuals to participate in shaping the future of Java. Oracle is one of the key executive committee members of the JCP.

5. Java Technologies and Services: Oracle offers a range of Java-related technologies and services, including Java-based databases (e.g., Oracle Database), Java application servers (e.g., Oracle WebLogic Server), and Java-based tools and frameworks for various purposes.

6. Java Support and Training: Oracle provides support and training services for Java developers and organizations. They offer certifications, training courses, and support plans to help businesses effectively use Java technologies.

It’s important to note that while Oracle’s contributions to the Java ecosystem are significant, there are also other Java distributions available, including those based on OpenJDK, that are used by developers and organizations worldwide. The choice of Java distribution often depends on factors such as licensing, support requirements, and specific use cases.