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https://issues.apache.org/jira/browse/HBASE-20442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HBASE-20442 started by Sean Busbey.
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> clean up incorrect use of commons-collections 3
> -----------------------------------------------
>
> Key: HBASE-20442
> URL: https://issues.apache.org/jira/browse/HBASE-20442
> Project: HBase
> Issue Type: Bug
> Components: dependencies, thirdparty
> Affects Versions: 2.0.0
> Reporter: Sean Busbey
> Assignee: Sean Busbey
> Priority: Major
> Fix For: 2.0.1
>
>
> we upgraded to commons-collections 4 in HBASE-18704 and then to an
> internal-only hbase-thirdparty version in HBASE-20223, but we've regressed:
> {code}
> $ git grep "import org.apache.commons.collections"
> hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/master/BackupLogCleaner.java:import
> org.apache.commons.collections.MapUtils;
> hbase-client/src/main/java/org/apache/hadoop/hbase/client/RowMutations.java:import
> org.apache.commons.collections.CollectionUtils;
> hbase-common/src/main/java/org/apache/hadoop/hbase/util/Bytes.java:import
> org.apache.commons.collections.CollectionUtils;
> hbase-replication/src/main/java/org/apache/hadoop/hbase/replication/ZKReplicationQueueStorage.java:import
> org.apache.commons.collections.CollectionUtils;
> hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java:import
> org.apache.commons.collections.CollectionUtils;
> hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java:import
> org.apache.commons.collections.CollectionUtils;
> hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreScanner.java:import
> org.apache.commons.collections.CollectionUtils;
> hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSWALEntry.java:import
> org.apache.commons.collections.CollectionUtils;
> hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java:import
> org.apache.commons.collections.CollectionUtils;
> hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java:import
> org.apache.commons.collections.MapUtils;
> {code}
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