[MAPREDUCE-2972] Running commands from the hadoop-mapreduce-test-*.jar fails with ClassNotFoundException: junit.framework.TestCase

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Cannot Reproduce
• Component/s: mrv2
• Target Version/s: 0.23.1
• Assignee: Jeffrey Naisbitt
• Reporter: Jeffrey Naisbitt
• Created: 09/Sep/11 15:13
• Updated: 20/Dec/11 23:06
• Resolved: 20/Dec/11 23:06

Description

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.

Issue Links

• relates to: HADOOP-7590 Mavenize streaming and MR examples