Hadoop Error: java.lang.ClassNotFoundException:org.codehaus.jackson.map.JsonMappingException

Currently, I did some practise about Hadoop and met some erorrs. Like this, I can run the Hadoop application with terminal on HDFS, but I cannot run it locally with eclipse for following errors:

The reason is that I did not import right jar package, so after import jackson-core-asl-version.jar and jackson-mapper-asl-version.jar in path hadoop/client-0.20 I can run it correctly.

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