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https://issues.apache.org/jira/browse/MAPREDUCE-2972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13173595#comment-13173595
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John George commented on MAPREDUCE-2972:
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I cannot reproduce this on the latest hadoop.
This is also possibly because the tarball and dist comes in a single folder
(instead of separate ones for common,hdfs, and mapreduce). Reducing the
priority and closing this for now. If this comes up again, will reopen then.
> Running commands from the hadoop-mapreduce-test-*.jar fails with
> ClassNotFoundException: junit.framework.TestCase
> ------------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2972
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2972
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Reporter: Jeffrey Naisbitt
> Assignee: Jeffrey Naisbitt
> Priority: Critical
>
> Running any of the 'hadoop jar hadoop-mapreduce-test-*.jar' commands gives
> the following exception:
> java.lang.NoClassDefFoundError: junit/framework/TestCase
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
> at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
> at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:300)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
> at
> org.apache.hadoop.test.MapredTestDriver.<init>(MapredTestDriver.java:59)
> at
> org.apache.hadoop.test.MapredTestDriver.<init>(MapredTestDriver.java:53)
> at
> org.apache.hadoop.test.MapredTestDriver.main(MapredTestDriver.java:118)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:189)
> Caused by: java.lang.ClassNotFoundException: junit.framework.TestCase
> at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
> ... 21 more
> This happens even when just running 'hadoop jar $TEST_JAR' where it should
> just print the available commands.
> Copying the junit-*.jar from $HADOOP_MAPRED_HOME/lib/ to
> $HADOOP_COMMON_HOME/share/hadoop/common/lib/ seems to fix the problem.
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