Recently, Bruno Borges from Microsoft posted a message on the OpenJDK mailing list with information about what happened next and how Microsoft began to integrate its team into the OpenJDK community. In the mail, Bruno Borges mentioned that Microsoft has officially signed the Oracle Contributors Agreement. At the same time, he reiterated Microsoft’s commitment to Java and the expectations of the Microsoft team to give back to the Java community.
Borges was an Oracle developer and is currently the lead product manager for Java at Microsoft. He introduced Martijn Verburg, head of the Java engineering team, who is also the CEO of jClarity. jClarity, a major contributor to AdoptOpenJDK, was acquired by Microsoft in August this year.
This email can be found on the OpenJDK mailing list:
Hi OpenJDK Community,
In the past week Microsoft formally signed the Oracle Contributor Agreement, in which Oracle Inc. promptly acknowledged and welcomed us to the project. On behalf of the Microsoft Java Engineering Team, I’d like to say that we are thrilled to officially join the OpenJDK project and be ready to work with you.
As many of you may know, Microsoft and its subsidiaries are heavily dependent on Java in many aspects, and also offers Java runtimes in its Microsoft Azure cloud to its customers. Microsoft recognizes the immense value that Oracle’s successful and effective stewardship of the OpenJDK project has bought Java and the wider software ecosystem and we look forward to playing our part in contributing back!
The team will initially be working on smaller bug fixes and backports so that we can learn how to be good citizens within OpenJDK. For example, we already understand that discussing changes first before posting patches is preferred and I’m sure there’s more for us to learn as well.
The Java engineering team led by Martijn Verburg  is already engaged with other Microsoft groups and its subsidiaries who are using Java, as well as its partners in the Java ecosystem such as Azul Systems, Oracle, Pivotal, Red Hat, Intel, SAP and others, and the overall team will be joining the many OpenJDK mailing lists to start conversations and participating.
We look forward to participating in the future of Java.
Microsoft’s first contribution to OpenJDK was in 2014, contributing content on the optimization of the TCP loopback fast path mechanism on Windows. In October 2018, Oracle plans to migrate the OpenJDK source code library to GitHub. When GitHub was just acquired by Microsoft, Microsoft’s relationship with OpenJDK has gone a step further.