title: oozie java.lang.RuntimeException: Error in configuring object
body: <p>Iam geting below erro on oozie workflow can any one help me?
  CDH4</p>
  
  <pre><code>   java.lang.RuntimeException: Error in configuring object
      at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:109)
      at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:75)
      at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133)
      at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:413)
      at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
      at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
      at java.security.AccessController.doPrivileged(Native Method)
      at javax.security.auth.Subject.doAs(Subject.java:396)
      at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408)
      at org.apache.hadoop.mapred.Child.main(Child.java:262)
  Caused by: java.lang.reflect.InvocationTargetException
      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.ReflectionUtils.setJobConf(ReflectionUtils.java:106)
              ... 9 more
  
  Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class Bysports.MyMapper not found
          at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1806)
          at org.apache.hadoop.mapred.JobConf.getMapperClass(JobConf.java:992)
          at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
          ... 14 more
  </code></pre>