Sean Busbey created ACCUMULO-2017:
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Summary: Wikisearch should use Guava instead of Google Collections
Key: ACCUMULO-2017
URL: https://issues.apache.org/jira/browse/ACCUMULO-2017
Project: Accumulo
Issue Type: Sub-task
Components: wikisearch
Affects Versions: 1.5.0, 1.4.5
Reporter: Sean Busbey
Assignee: Sean Busbey
Priority: Critical
Fix For: 1.4.5, 1.5.1
(I'm using 1.5.0 as a placeholder or Wikisearch's master branch)
Wikisearch uses google collections 1.0, which has since been replaced by Guava.
Hadoop 2 relies on Guava for its internals and includes it in the classpath.
The [Google Collections decommissioning
notice|https://code.google.com/p/google-collections/] warns
{quote}
Guava is a fully compatible superset of the old Google Collections Library. It
also includes years worth of bug fixes, doc fixes, and performance fixes, so we
strongly encourage you to use Guava instead of Google Collections.
If your application ever ends up with both google-collect-1.0.jar and
guava-r##.jar on the same classpath, simply remove the Google Collections JAR
and you should be fine. If you don't remove it, it will either cause terrible
problems (if it comes before guava in the classpath) or will never even be seen
anyway (if it comes after).
{quote}
Under the Hadoop 2 profile, google collections comes first and a bunch of tests
fail as a result.
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