Upgrade to Jackson 2.6

[scosenza]

No description provided.

[cevaris]

Attempted both versions v2.6.3 and 2.5.3, currently seems to be an issue with jackson libs.

http://stackoverflow.com/questions/31452802/how-to-use-java-8-date-classes-and-jackson-with-spark
http://stackoverflow.com/questions/32334517/error-in-running-job-on-spark-1-4-0-with-jackson-module-with-scalaobjectmapper

Run into the following error.

An exception or error caused a run to abort: com.twitter.finatra.json.modules.FinatraJacksonModule$$anon$1.com$fasterxml$jackson$module$scala$experimental$ScalaObjectMapper$_setter_$com$fasterxml$jackson$module$scala$experimental$ScalaObjectMapper$$typeCache_$eq(Lcom/google/common/cache/LoadingCache;)V 
java.lang.AbstractMethodError: com.twitter.finatra.json.modules.FinatraJacksonModule$$anon$1.com$fasterxml$jackson$module$scala$experimental$ScalaObjectMapper$_setter_$com$fasterxml$jackson$module$scala$experimental$ScalaObjectMapper$$typeCache_$eq(Lcom/google/common/cache/LoadingCache;)V

[jdrphillips]

👍

[scosenza]

It looks like Gauva also needs to be upgraded.

On Tuesday, April 12, 2016, James Phillips notifications@github.com wrote:

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[cacoco]

We're updating this library internally and this upgrade will ideally make it into our next release.

[jimdickinson]

Is 2.7 possible? On https://github.com/FasterXML/jackson-module-scala they mention

Please use versions 2.6.5, or 2.7.2; earlier released versions are known to contain significant bugs.

[cacoco]

@jimdickinson 2.7 contains a regression in Option serialization (FasterXML/jackson-module-scala#240).

[cacoco]

merged in bb1288a