WikipediaIrcDecoder is not working in master branch

[navis]

looks like regression from #2646. seeing maxmind/GeoIP2-java#57, we need upgrade version of jackson-binding to >= 2.7.0

2016-03-24T06:25:56,227 ERROR [task-runner-0-priority-0] io.druid.indexing.common.task.RealtimeIndexTask - Exception aborted realtime processing[wikipedia]: {class=io.druid.indexing.common.task.RealtimeIndexTask, exceptionType=class java.lang.IllegalArgumentException, exceptionMessage=Instantiation of [simple type, class io.druid.segment.realtime.firehose.WikipediaIrcDecoder] value failed: com.fasterxml.jackson.databind.node.ArrayNode.<init>(Lcom/fasterxml/jackson/databind/node/JsonNodeFactory;Ljava/util/List;)V}
java.lang.IllegalArgumentException: Instantiation of [simple type, class io.druid.segment.realtime.firehose.WikipediaIrcDecoder] value failed: com.fasterxml.jackson.databind.node.ArrayNode.<init>(Lcom/fasterxml/jackson/databind/node/JsonNodeFactory;Ljava/util/List;)V
        at com.fasterxml.jackson.databind.ObjectMapper._convert(ObjectMapper.java:2774) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.ObjectMapper.convertValue(ObjectMapper.java:2700) ~[jackson-databind-2.4.6.jar:2.4.6]
        at io.druid.segment.indexing.DataSchema.getParser(DataSchema.java:101) ~[druid-server-0.9.1-SNAPSHOT.jar:0.9.1-SNAPSHOT]
        at io.druid.indexing.common.task.RealtimeIndexTask.run(RealtimeIndexTask.java:336) [druid-indexing-service-0.9.1-SNAPSHOT.jar:0.9.1-SNAPSHOT]
        at io.druid.indexing.overlord.ThreadPoolTaskRunner$ThreadPoolTaskRunnerCallable.call(ThreadPoolTaskRunner.java:411) [druid-indexing-service-0.9.1-SNAPSHOT.jar:0.9.1-SNAPSHOT]
        at io.druid.indexing.overlord.ThreadPoolTaskRunner$ThreadPoolTaskRunnerCallable.call(ThreadPoolTaskRunner.java:384) [druid-indexing-service-0.9.1-SNAPSHOT.jar:0.9.1-SNAPSHOT]
        at java.util.concurrent.FutureTask.run(FutureTask.java:262) [?:1.7.0_75]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [?:1.7.0_75]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [?:1.7.0_75]
        at java.lang.Thread.run(Thread.java:745) [?:1.7.0_75]
Caused by: com.fasterxml.jackson.databind.JsonMappingException: Instantiation of [simple type, class io.druid.segment.realtime.firehose.WikipediaIrcDecoder] value failed: com.fasterxml.jackson.databind.node.ArrayNode.<init>(Lcom/fasterxml/jackson/databind/node/JsonNodeFactory;Ljava/util/List;)V
        at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.wrapException(StdValueInstantiator.java:405) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromObjectWith(StdValueInstantiator.java:234) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.impl.PropertyBasedCreator.build(PropertyBasedCreator.java:167) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:398) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1064) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:264) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:156) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:126) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer._deserializeTypedForId(AsPropertyTypeDeserializer.java:113) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.jsontype.impl.AsPropertyTypeDeserializer.deserializeTypedFromObject(AsPropertyTypeDeserializer.java:84) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.AbstractDeserializer.deserializeWithType(AbstractDeserializer.java:132) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:536) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:344) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1064) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:264) ~[jackson-databind-2.4.6.jar:2.4.6]
        at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:156) ~[jackson-databind-2.4.6.jar:2.4.6]...

[gianm]

We have been holding back on jackson upgrades due to issues with Hadoop. Jackson version conflicts seem to cause so many problems, maybe we should publish an io.druid jackson that is relocated and just use that…