Bug: HazelcastIdempotentRepository::confirm should check useRecovery before using persistedCache

[Dario Cimafonte]

Hi all,

I'm seeing a NullPointException at 
org.apache.camel.processor.aggregate.hazelcast.HazelcastAggregationRepository:362

I'm using "useRecovery=false".

Camel version: 2.15.2
Environment: Apache ServiceMix 6.0.0
Component: camel-hazelcast-2.15.2.jar

Regards,
Dario Cimafonte