Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/4424
Hi @zhangminglei, are you sure that this is not an issue with your local
setup?
In the master branch, there is only one class
`UserDefinedFunctionTestUtils` in org.apache.flink.table.runtime.utils`. It was
previously located in `org.apache.flink.table.utils._` (and still is in the
`release-1.3` branch) but was recently moved to the new location. Maybe
something went wrong when you updated or switched your branch.
Can you clone a new copy of the master branch and try to build it?
I'm not opposed to the change you are proposing. I'd just like to
understand the cause of the problem.
Thanks, Fabian
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