Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/4435#discussion_r28730899
--- Diff: core/pom.xml ---
@@ -220,6 +220,21 @@
<version>3.2.10</version>
</dependency>
<dependency>
+ <groupId>com.fasterxml.jackson.module</groupId>
+ <artifactId>jackson-module-scala_2.10</artifactId>
+ <version>2.3.1</version>
+ </dependency>
+ <dependency>
+ <groupId>com.sun.jersey</groupId>
+ <artifactId>jersey-server</artifactId>
+ <version>1.9</version>
+ </dependency>
+ <dependency>
+ <groupId>org.glassfish.jersey.media</groupId>
+ <artifactId>jersey-media-json-jackson</artifactId>
--- End diff --
Could you double-check that pulling this is not causing different
com.fasterxml.jackson libraries to be mixed up? I checked the pom for this
artifact and it seems to depend on a different version of jackson than the one
Spark pulls.
Also, I wonder if it wouldn't be better to do like Yarn and avoid pulling
this dependency (which is from a different Jersey version). See:
https://github.com/apache/hadoop/blob/branch-2/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/YarnJacksonJaxbJsonProvider.java
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