Exception in thread "main" java.lang.NoSuchFieldError: IBM_JAVA

WARNING: org.apache.hadoop.metrics.jvm.EventCounter is deprecated. Please use org.apache.hadoop.log.metrics.EventCounter in all the log4j.properties files.
Exception in thread "main" java.lang.NoSuchFieldError: IBM_JAVA
        at org.apache.hadoop.security.UserGroupInformation.getOSLoginModuleName(UserGroupInformation.java:365)
        at org.apache.hadoop.security.UserGroupInformation.<clinit>(UserGroupInformation.java:410)
        at org.apache.hadoop.fs.FileSystem$Cache$Key.<init>(FileSystem.java:2812)
        at org.apache.hadoop.fs.FileSystem$Cache$Key.<init>(FileSystem.java:2802)
        at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2668)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:170)
        at Write.main(Write.java:14)

Solution:

This is the problem of conflict b/w hadoop-core-*.jar and hadoop-auth-*.jar.

I have resolved this issue by removing hadoop-core-*.jar from my CLASSPATH.