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Package org.apache.hadoop.security

Added Classes
JniBasedUnixGroupsMappingWithFallback  
JniBasedUnixGroupsNetgroupMappingWithFallback  
MultiRealmUserAuthentication Utility class to support users and servers belonging two different realms
 

Changed Classes
SaslRpcServer.AuthMethod Authentication method
SecurityUtil  
UserGroupInformation User and group information for Hadoop.