Zhenhao Li created FLINK-22615:
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Summary: can't use test harness to test Scala UDF because of two
versions of ProcessWindowFunction
Key: FLINK-22615
URL: https://issues.apache.org/jira/browse/FLINK-22615
Project: Flink
Issue Type: Improvement
Reporter: Zhenhao Li
I'm trying to use `InternalSingleValueProcessWindowFunction` to test a UDF of
class
```
org.apache.flink.streaming.api.scala.function.ProcessWindowFunction
```
But the constructor of `InternalSingleValueProcessWindowFunction` expect
```
org.apache.flink.streaming.api.functions.windowing.ProcessWindowFunction and
```
I'm wondering if it is possible to use a common abstraction for Java and Scala
in those test utilities.
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