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Etienne Chauchot updated BEAM-2499: ----------------------------------- Summary: Support Custom Windows in Spark runner (was: Fail to merge Custom Windows in Spark runner) > Support Custom Windows in Spark runner > -------------------------------------- > > Key: BEAM-2499 > URL: https://issues.apache.org/jira/browse/BEAM-2499 > Project: Beam > Issue Type: Bug > Components: runner-spark > Reporter: Etienne Chauchot > Assignee: Etienne Chauchot > > If we extend {{IntervalWindow}} and we try to merge these custom windows like > in this PR: > https://github.com/apache/beam/pull/3286 > Then spark runner fails with > {{org.apache.beam.sdk.Pipeline$PipelineExecutionException: > java.lang.ClassCastException: > org.apache.beam.sdk.transforms.windowing.IntervalWindow cannot be cast to > org.apache.beam.sdk.transforms.windowing.MergingCustomWindowsTest$CustomWindow}} > It seems to be because of the cast to {{IntervalWindow}} there: > https://github.com/apache/beam/blob/master/runners/spark/src/main/java/org/apache/beam/runners/spark/translation/SparkGlobalCombineFn.java#L111 -- This message was sent by Atlassian JIRA (v6.4.14#64029)