Saw this on #7934 <https://github.com/apache/beam/pull/7934> (scan <https://scans.gradle.com/s/5oo6usexbxobw/console-log?task=:beam-runners-google-cloud-dataflow-java:test>) but can also reproduce locally from HEAD, and also from commits that previously passed Jenkins precommit:
./gradlew :beam-runners-google-cloud-dataflow-java:test --tests '*testPathExistsValidation' I just sent an optimistic fix at #8013 <https://github.com/apache/beam/pull/8013>, which changes the expected error msg to something that comes from the Beam stack. Apparently we were asserting on the error-msg returned by some external GCS API which just changed.
