LUCENE-5892: CharsRefBuilder implements Accountable.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1618627 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5892: Missed the covariant return type.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1618629 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5850: Add missing hashCode implementation to Version.java

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Merged revision(s) 1618652 from lucene/dev/trunk:
SOLR-6389: Fix spec version of WAR file

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1618654 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5656: Add autoAddReplicas feature for shared file systems.

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Backport fix in waitForMerges to allow merge scheduler to run one last time

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Fix build breakage from r1618668

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Merged revision(s) 1618672 from lucene/dev/trunk:
SOLR-6387: Add better error messages throughout Solr and supply a work around for Java bug #8047340 to SystemInfoHandler: On Turkish default locale, some JVMs fail to fork on MacOSX, BSD, AIX, and Solaris platforms.

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SOLR-6338: coreRootDirectory requires trailing slash, or SolrCloud cores are created in wrong location

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SOLR-6314: Multi-threaded facet counts differ when SolrCloud has >1 shard

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LUCENE-5891: clean up Lucene410DVProducer concurrency

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SOLR-6378: Fixed example/example-DIH/ issues with "tika" and "solr" configurations, and tidied up README.txt (merged from trunk r1618878)


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Fix test file name typo (merged from trunk r1618917)

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Merged revision(s) 1618938 from lucene/dev/trunk:
SOLR-6387: Try to fix this a second time...

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Merged revision(s) 1618959 from lucene/dev/trunk:
SOLR-6388: Add changes entry

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LUCENE-5893: use Files.createTempDirectory

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Test: fix fallthrough compiler warning

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LUCENE-5714: TestBBoxStrategy work-around for Spatial4j Rect bug #85

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SOLR-6178: backout deprecation until we have a diff default (merge r1619172)

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LUCENE-5896: Use local random instance rather than global in LuceneTestCase

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