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Jan 21, 2020
Jan 21, 2020

UnsupportedClassVersionError: <x> has been compiled by a more recent version of the Java Runtime

This article is just for Googlers and my future self encountering this error. Recently I was building a Docker image from the ksqlDB code base, and whilst it built successfully the ksqlDB server process in the Docker container when instantiated failed with a UnsupportedClassVersionError:


Robin Moffatt

Robin Moffatt works on the DevRel team at Confluent. He likes writing about himself in the third person, eating good breakfasts, and drinking good beer.

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