[jira] [Updated] (KAFKA-10417) suppress() with cogroup() throws ClassCastException

[Wardha Perinkada Kattu (Jira)]

     [ 
https://issues.apache.org/jira/browse/KAFKA-10417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Wardha Perinkada Kattu updated KAFKA-10417:
-------------------------------------------
    Description: 
Streams operation - `cogroup()`, `aggregate()` followed by `suppress()` throws 
`ClassCastException`

Works fine without the `suppress()`

Code block tested -
{code:java}
val stream1 = requestStreams.merge(successStreams).merge(errorStreams)
                .groupByKey(Grouped.with(Serdes.String(), 
serdesConfig.notificationSerde()))

        val streams2 = confirmationStreams
                .groupByKey(Grouped.with(Serdes.String(), 
serdesConfig.confirmationsSerde()))

        val cogrouped = 
stream1.cogroup(notificationAggregator).cogroup(streams2, 
confirmationsAggregator)
                
.windowedBy(TimeWindows.of(Duration.ofMinutes(notificationStreamsConfig.joinWindowMinutes.toLong())).grace(Duration.ofMinutes(notificationStreamsConfig.graceDurationMinutes.toLong())))
                .aggregate({ null }, Materialized.`as`<String, 
NotificationMetric, WindowStore<Bytes, 
ByteArray>>("time-windowed-aggregated-stream-store")
                        .withValueSerde(serdesConfig.notificationMetricSerde()))
                 .suppress(Suppressed.untilWindowCloses(unbounded()))
                .toStream()

{code}
Exception thrown is:
{code:java}
Caused by: java.lang.ClassCastException: class 
org.apache.kafka.streams.kstream.internals.PassThrough cannot be cast to class 
org.apache.kafka.streams.kstream.internals.KTableProcessorSupplier 
(org.apache.kafka.streams.kstream.internals.PassThrough and 
org.apache.kafka.streams.kstream.internals.KTableProcessorSupplier are in 
unnamed module of loader 'app')
{code}
[https://stackoverflow.com/questions/63459685/kgroupedstream-with-cogroup-aggregate-suppress]

  was:
Streams operation - `cogroup()`, `aggregate()` followed by `suppress()` throws 
`ClassCastException`

Works fine without the `suppress()`

 
{code:java}

val stream1 = requestStreams.merge(successStreams).merge(errorStreams)
                .groupByKey(Grouped.with(Serdes.String(), 
serdesConfig.notificationSerde()))

        val streams2 = confirmationStreams
                .groupByKey(Grouped.with(Serdes.String(), 
serdesConfig.confirmationsSerde()))

        val cogrouped = 
stream1.cogroup(notificationAggregator).cogroup(streams2, 
confirmationsAggregator)
                
.windowedBy(TimeWindows.of(Duration.ofMinutes(notificationStreamsConfig.joinWindowMinutes.toLong())).grace(Duration.ofMinutes(notificationStreamsConfig.graceDurationMinutes.toLong())))
                .aggregate({ null }, Materialized.`as`<String, 
NotificationMetric, WindowStore<Bytes, 
ByteArray>>("time-windowed-aggregated-stream-store")
                        .withValueSerde(serdesConfig.notificationMetricSerde()))
                 .suppress(Suppressed.untilWindowCloses(unbounded()))
                .toStream()

{code}
Exception thrown is:
{code:java}
Caused by: java.lang.ClassCastException: class 
org.apache.kafka.streams.kstream.internals.PassThrough cannot be cast to class 
org.apache.kafka.streams.kstream.internals.KTableProcessorSupplier 
(org.apache.kafka.streams.kstream.internals.PassThrough and 
org.apache.kafka.streams.kstream.internals.KTableProcessorSupplier are in 
unnamed module of loader 'app')
{code}
 

[https://stackoverflow.com/questions/63459685/kgroupedstream-with-cogroup-aggregate-suppress]

 


> suppress() with cogroup() throws ClassCastException
> ---------------------------------------------------
>
>                 Key: KAFKA-10417
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10417
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 2.6.0
>            Reporter: Wardha Perinkada Kattu
>            Priority: Blocker
>              Labels: kafka-streams
>
> Streams operation - `cogroup()`, `aggregate()` followed by `suppress()` 
> throws `ClassCastException`
> Works fine without the `suppress()`
> Code block tested -
> {code:java}
> val stream1 = requestStreams.merge(successStreams).merge(errorStreams)
>                 .groupByKey(Grouped.with(Serdes.String(), 
> serdesConfig.notificationSerde()))
>         val streams2 = confirmationStreams
>                 .groupByKey(Grouped.with(Serdes.String(), 
> serdesConfig.confirmationsSerde()))
>         val cogrouped = 
> stream1.cogroup(notificationAggregator).cogroup(streams2, 
> confirmationsAggregator)
>                 
> .windowedBy(TimeWindows.of(Duration.ofMinutes(notificationStreamsConfig.joinWindowMinutes.toLong())).grace(Duration.ofMinutes(notificationStreamsConfig.graceDurationMinutes.toLong())))
>                 .aggregate({ null }, Materialized.`as`<String, 
> NotificationMetric, WindowStore<Bytes, 
> ByteArray>>("time-windowed-aggregated-stream-store")
>                         
> .withValueSerde(serdesConfig.notificationMetricSerde()))
>                  .suppress(Suppressed.untilWindowCloses(unbounded()))
>                 .toStream()
> {code}
> Exception thrown is:
> {code:java}
> Caused by: java.lang.ClassCastException: class 
> org.apache.kafka.streams.kstream.internals.PassThrough cannot be cast to 
> class org.apache.kafka.streams.kstream.internals.KTableProcessorSupplier 
> (org.apache.kafka.streams.kstream.internals.PassThrough and 
> org.apache.kafka.streams.kstream.internals.KTableProcessorSupplier are in 
> unnamed module of loader 'app')
> {code}
> [https://stackoverflow.com/questions/63459685/kgroupedstream-with-cogroup-aggregate-suppress]



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