here is my trace exception message:
17/04/09 18:22:22 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
17/04/09 18:22:23 INFO Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id
17/04/09 18:22:23 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId=
Exception in thread "main" java.lang.NoClassDefFoundError: org/codehaus/jackson/map/JsonMappingException
at org.apache.hadoop.mapreduce.Job.getJobSubmitter(Job.java:1291)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1302)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1325)
at com.BigData101.WordCount.main(WordCount.java:60)
Caused by: java.lang.ClassNotFoundException: org.codehaus.jackson.map.JsonMappingException
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
