For the past year and a half, we have been building and testing Derby against early access versions of JDK 9. JDK 9 appears to be in the final months of testing before GA. I have run the Derby regression tests against Derby release, using the JDK 9 build 181 platform. The tests run cleanly. My results are recorded at

In my opinion Derby is ready for JDK 9.

This is our last opportunity to provide feedback to the team which is developing JDK 9. You are encourged to download the latest version of JDK 9 from and to test your Derby-powered apps on that platform. Let me know if you discover any problems. I will forward your feedback to the JDK team.


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