Could you try bumping the version in your own checkout of Tika head from git, and report back if all the unit tests still pass afterwards? That'll give us an idea of how much work doing the upgrade would be

About to submit git pull request.

All test still pass, version bump in pom plus fixes to CachedTranslater as Jackson has changed the map implementation it's using.

GitHub user nhojpatrick opened a pull request:

https://github.com/apache/tika/pull/75

TIKA-1869 update Jackson to latest version 2.7.1

You can merge this pull request into a Git repository by running:

$ git pull https://github.com/nhojpatrick/tika bugfix/TIKA-1869

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/tika/pull/75.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #75

commit 13d772ab6317c6151b4b4e6111b80af2bd30cd7b
Author: John Patrick <nhoj.patrick@gmail.com>
Date: 2016-02-24T13:19:53Z

TIKA-1869 update Jackson to latest version 2.7.1

Github user asfgit closed the pull request at:

https://github.com/apache/tika/pull/75

Thanks, patch applied

SUCCESS: Integrated in tika-trunk-jdk1.7 #913 (See https://builds.apache.org/job/tika-trunk-jdk1.7/913/)
TIKA-1869 update Jackson to latest version 2.7.1 (nhoj.patrick: rev 13d772ab6317c6151b4b4e6111b80af2bd30cd7b)

• tika-translate/pom.xml
• tika-translate/src/main/java/org/apache/tika/language/translate/CachedTranslator.java
  Update changelog for Jackson upgrade from John Patrick from TIKA-1869. (nick: rev 08e38bb646eca79f30fde7285e8c977076c04ca4)
• CHANGES.txt