Oracle has banned AI-generated code from OpenJDK contributions due to safety, security, and intellectual property concerns. Developers are permitted to use large language models privately for debugging and reviewing code but cannot submit AI-generated content to repositories or pull requests.

Oracle is drafting a policy governing the use of generative AI tools in OpenJDK contributions. The policy aims to address opportunities for improved developer productivity while managing risks related to reviewer burden, safety, security, and intellectual property.

Project Valhalla will be integrated into the main OpenJDK repository, targeting JDK 28. JEP 401 introduces Value Classes and Objects, marking a significant advancement in the Java Virtual Machine.