Jackson version is too old - scala

Question

I have the following build.sbt file:
name := "myProject"
version := "1.0"
scalaVersion := "2.11.8"
javaOptions ++= Seq("-Xms512M", "-Xmx2048M", "-XX:MaxPermSize=2048M", "-XX:+CMSClassUnloadingEnabled")
dependencyOverrides ++= Set(
"com.fasterxml.jackson.core" % "jackson-core" % "2.8.1"
)
// additional libraries
libraryDependencies ++= Seq(
"org.apache.spark" %% "spark-core" % "2.0.0" % "provided",
"org.apache.spark" %% "spark-sql" % "2.0.0" % "provided",
"org.apache.spark" %% "spark-hive" % "2.0.0" % "provided",
"com.databricks" %% "spark-csv" % "1.4.0",
"org.scalactic" %% "scalactic" % "2.2.1",
"org.scalatest" %% "scalatest" % "2.2.1" % "test",
"org.scalacheck" %% "scalacheck" % "1.12.4",
"com.holdenkarau" %% "spark-testing-base" % "2.0.0_0.4.4" % "test",
)
However, when I am running the code, I get this error:
An exception or error caused a run to abort.
java.lang.ExceptionInInitializerError
Caused by: com.fasterxml.jackson.databind.JsonMappingException: Jackson version is too old 2.4.4
at com.fasterxml.jackson.module.scala.JacksonModule$class.setupModule(JacksonModule.scala:56)
at com.fasterxml.jackson.module.scala.DefaultScalaModule.setupModule(DefaultScalaModule.scala:19)
at com.fasterxml.jackson.databind.ObjectMapper.registerModule(ObjectMapper.java:549)
at org.apache.spark.rdd.RDDOperationScope$.<init>(RDDOperationScope.scala:82)
at org.apache.spark.rdd.RDDOperationScope$.<clinit>(RDDOperationScope.scala)
... 58 more
Why is this the case?
I've added a newer version of Jackson to dependencyOverrides(after looking here Spark Parallelize? (Could not find creator property with name 'id')), so an older version shouldn't be used.

Answer 1

jackson-core and jackson-databind versions should match (at least up to the minor version, I believe).
So remove the dependencyOverrides and have
libraryDependencies ++= Seq(
...
"com.fasterxml.jackson.core" % "jackson-databind" % "2.8.1"
)
Or specify both in dependencyOverrides
dependencyOverrides ++= Set(
"com.fasterxml.jackson.core" % "jackson-core" % "2.8.1"
"com.fasterxml.jackson.core" % "jackson-databind" % "2.8.1"
)
Though I'm not sure I understand what you are trying to do; the linked question seems to say that you should used an older version (2.4.4).