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https://issues.apache.org/jira/browse/MAPREDUCE-1014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12758146#action_12758146
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Ravi Gummadi commented on MAPREDUCE-1014:
-----------------------------------------
build.xml is looking for jars with "0.22.0-dev" as version, but trunk/lib/ has
jars with name containing "0.21.0-dev"
Just renaming the jars in lib/ to have "0.22.0-dev" is solving the build issue.
> After the 0.21 branch, MapReduce trunk doesn't compile
> ------------------------------------------------------
>
> Key: MAPREDUCE-1014
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1014
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Devaraj Das
> Assignee: Ravi Gummadi
> Priority: Blocker
>
> When ant is run, the build fails with compilation problems. The first of that
> is:
> compile-mapred-classes:
> [taskdef] log4j:ERROR Could not instantiate class
> [org.apache.hadoop.metrics.jvm.EventCounter].
> [taskdef] java.lang.ClassNotFoundException:
> org.apache.hadoop.metrics.jvm.EventCounter
> [taskdef] at
> org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1383)
> [taskdef] at
> org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1324)
> [taskdef] at
> org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:1072)
> [taskdef] at java.lang.ClassLoader.loadClass(ClassLoader.java:254)
> [taskdef] at
> java.lang.ClassLoader.loadClassInternal(ClassLoader.java:402)
> [taskdef] at java.lang.Class.forName0(Native Method)
> [taskdef] at java.lang.Class.forName(Class.java:169)
> [taskdef] at org.apache.log4j.helpers.Loader.loadClass(Loader.java:179)
> [taskdef] at
> org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:320)
> [taskdef] at
> org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:121)
> [taskdef] at
> org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:664)
> [taskdef] at
> org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:647)
> [taskdef] at
> org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:544)
> [taskdef] at
> org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:440)
> [taskdef] at
> org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:476)
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