ClassCastException in DistinctValuesAggregation class

[Anil Dasari]

Hi,

I am using hazelcast 3.5.2 in my application and distinct aggregation throwing following exception

 java.lang.ClassCastException: com.hazelcast.mapreduce.aggregation.impl.DistinctValuesAggregation$SimpleEntry cannot be cast to com.hazelcast.query.impl.QueryableEntry

at com.hazelcast.map.impl.proxy.MapProxyImpl.aggregate(MapProxyImpl.java:673)

at com.hazelcast.map.impl.proxy.MapProxyImpl.aggregate(MapProxyImpl.java:644)

my query :

Supplier<String, SampleEntity, String> typeExtractor = Supplier.all((value) ->  value.getType());

Supplier<String, SampleEntity, String> supplier  = Supplier.fromPredicate(sql, typeExtractor);

Aggregation<String, String, Set<String>> aggregate = Aggregations.distinctValues();

Set<String> distinctValues = (Set<String>)map.aggregate(supplier , aggregate);

i tried with 3.6.1 and i see following exception -

com.hazelcast.mapreduce.aggregation.impl.DistinctValuesAggregation$SimpleEntry cannot be cast to com.hazelcast.query.impl.Extractable 

https://github.com/hazelcast/hazelcast/issues/7398 says, it has been fixed in 3.6.1

Can you help me ? Thanks.

-

Anil

 

[Enes Akar]

It seems we fixed it for 3.7 but forgot to backport to 3.6.x.

We will fix it for 3.6.5.

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[Anil Dasari]

Thanks.