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Ben Sidhom commented on BEAM-3970: ---------------------------------- It looks like [WindowMappingFnRunner|https://github.com/apache/beam/blob/master/sdks/java/harness/src/main/java/org/apache/beam/fn/harness/WindowMappingFnRunner.java] should already support this. If so, we need to investigate why this is not being picked up by ExecutableStages. > Java SDK harness supports window_into > ------------------------------------- > > Key: BEAM-3970 > URL: https://issues.apache.org/jira/browse/BEAM-3970 > Project: Beam > Issue Type: Bug > Components: sdk-java-harness > Reporter: Ben Sidhom > Assignee: Luke Cwik > Priority: Major > > The Java SDK harness does not currently register a PTransformRunnerFactory > for beam:transform:window_into:v1. We need this functionality for GroupByKey > transforms. -- This message was sent by Atlassian JIRA (v7.6.3#76005)