java.lang.NoClassDefFoundError

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  • Run MapReduce Job from a web application
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    • java.lang.NoClassDefFoundError: org/codehaus/jackson/map/JsonMappingException at org.apache.hadoop.mapreduce.Job$1.run(Job.java:478) 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:1059) at org.apache.hadoop.mapreduce.Job.connect(Job.java:476) at org.apache.hadoop.mapreduce.Job.submit(Job.java:464) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:495) at org.springframework.data.hadoop.mapreduce.JobTasklet.execute(JobTasklet.java:50)
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