Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/base/Preconditions

Question

While running by java map reduce application in eclipse, and facing the below exception. I have included the commons-logging-1.2.jar file in my build path also, but still below is coming.

I am new to hadoop. Kindly help me out.

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/base/Preconditions
    at org.apache.hadoop.conf.Configuration$DeprecationDelta.<init>(Configuration.java:314)
    at org.apache.hadoop.conf.Configuration$DeprecationDelta.<init>(Configuration.java:327)
    at org.apache.hadoop.conf.Configuration.<clinit>(Configuration.java:409)
    at AverageNosClass.main(AverageNosClass.java:71)
Caused by: java.lang.ClassNotFoundException: com.google.common.base.Preconditions
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    ... 4 more

Answer 1

Adding guava-11.0.2.jar to the build path solved the issue. This jar is in /share/hadoop/tools/lib folder. I have installed hadoop 2.4.0.

Answer 2

Make sure you have added the correct Jar to your build path..

Answer 3

My issue has been resolved by adding the following jar

<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>13.0-rc1</version>
</dependency>