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https://issues.apache.org/jira/browse/HBASE-5861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13260541#comment-13260541
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Jonathan Hsieh commented on HBASE-5861:
---------------------------------------
There are two classes of changes I'm aware of currently:
1) Class becomes Interface -> which means constructors for some things have
moved to be impls. Seems to be ok with reflection.
2) Enum moved to different new class, and original class exists for
compatibility as a subclass of new class. This seems to require recompile
because this confuses class loader.
> Hadoop 23 compile broken due to tests introduced in HBASE-5064
> ---------------------------------------------------------------
>
> Key: HBASE-5861
> URL: https://issues.apache.org/jira/browse/HBASE-5861
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 0.94.0, 0.96.0
> Reporter: Jonathan Hsieh
> Assignee: Jonathan Hsieh
> Priority: Blocker
> Fix For: 0.94.0, 0.96.0
>
> Attachments: 5861.txt, hbase-5861-jon.patch, hbase-5861-v2.patch
>
>
> When attempting to compile HBase 0.94rc1 against hadoop 23, I got this set of
> compilation error messages:
> {code}
> jon@swoop:~/proj/hbase-0.94$ mvn clean test -Dhadoop.profile=23 -DskipTests
> ...
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 18.926s
> [INFO] Finished at: Mon Apr 23 10:38:47 PDT 2012
> [INFO] Final Memory: 55M/555M
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-compiler-plugin:2.0.2:testCompile
> (default-testCompile) on project hbase: Compilation failure: Compilation
> failure:
> [ERROR]
> /home/jon/proj/hbase-0.94/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHLogRecordReader.java:[147,46]
> org.apache.hadoop.mapreduce.JobContext is abstract; cannot be instantiated
> [ERROR]
> [ERROR]
> /home/jon/proj/hbase-0.94/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHLogRecordReader.java:[153,29]
> org.apache.hadoop.mapreduce.JobContext is abstract; cannot be instantiated
> [ERROR]
> [ERROR]
> /home/jon/proj/hbase-0.94/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHLogRecordReader.java:[194,46]
> org.apache.hadoop.mapreduce.JobContext is abstract; cannot be instantiated
> [ERROR]
> [ERROR]
> /home/jon/proj/hbase-0.94/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHLogRecordReader.java:[206,29]
> org.apache.hadoop.mapreduce.JobContext is abstract; cannot be instantiated
> [ERROR]
> [ERROR]
> /home/jon/proj/hbase-0.94/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHLogRecordReader.java:[213,29]
> org.apache.hadoop.mapreduce.JobContext is abstract; cannot be instantiated
> [ERROR]
> [ERROR]
> /home/jon/proj/hbase-0.94/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHLogRecordReader.java:[226,29]
> org.apache.hadoop.mapreduce.TaskAttemptContext is abstract; cannot be
> instantiated
> [ERROR] -> [Help 1]
> {code}
> Upon further investigation this issue is due to code introduced in HBASE-5064
> and is also present in trunk.
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