Github user lpiepiora commented on the pull request:
https://github.com/apache/spark/pull/9306#issuecomment-151666795
Seems that JetS3t bumped their version of HttpClient to 4.5, which is
conflicting with HtmlUnit, which actually tries to read private fields of
HttpClientBuilder. Since the field name changed (from `sslcontext` to
`sslContext`) the patch fails.
I've tested it by building Spark locally, and we should be good by sticking
to Spark's provided version of HttpClient, so I'll exclude this (and HttpCore)
transient dependency from the jets3t library.
Beside I've looked through Hadoop sources and compared it against [diff
between 0.9.3 and 0.9.4]
(https://bitbucket.org/jmurty/jets3t/branches/compare/Release-0.9.4%0DRelease-0.9.3#diff).
The files affected by the change between 0.9.3 and 0.9.4 doesn't seem to touch
any public members used directly by Hadoop code.
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