Digging further in the traces, it seems like a result of changes to the model:
Caused by: java.lang.ClassNotFoundException: org.apache.beam.model.pipeline.v1.StandardWindowFns$SessionsPayload$Enum I see changes by Lukasz Cwik. Will this be a problem for the release? _/ _/ Alex Van Boxel On Sun, Feb 16, 2020 at 12:11 PM Alex Van Boxel <a...@vanboxel.be> wrote: > Hey, > > I'm testing my own PR's against Dataflow, something I've done in the past > with success seem to fail now. I get this error: > > java.lang.NoClassDefFoundError: Could not initialize class > org.apache.beam.runners.dataflow.worker.repackaged.org.apache.beam.runners.core.construction.WindowingStrategyTranslation > > 1. > > > Am I doing something wrong? > > _/ > _/ Alex Van Boxel >