Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/9503#issuecomment-155317816
Something really weird is going on here.
Following the advice at http://stackoverflow.com/a/21876380/590203, I added
the following line to `DockerJDBCIntegrationSuite` in order to figure out where
`BasicLineFormatter` was being loaded from:
```
println(this.getClass.getClassLoader.getResource("org/apache/http/message/BasicLineFormatter.class"))
```
When I run this locally with
```
sbt/sbt -Pyarn -Phadoop-2.3 -Dhadoop.version=2.3.0 -Pkinesis-asl
-Phive-thriftserver -Phive
```
I get
```
jar:file:/Users/joshrosen/Documents/spark/lib_managed/jars/httpcore-4.2.4.jar!/org/apache/http/message/BasicLineFormatter.class
```
This doesn't make sense, though: `show test:dependencyClasspath` does not
include that JAR, so I'm not quite sure how it's winding up on the classpath.
If I toss in a
```
this.getClass.getClassLoader.asInstanceOf[URLClassLoader].getURLs.foreach(println)
```
I still don't see where that JAR is coming from.
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