org.apache.hadoop.security Class Hierarchy (Hadoop 0.20.2+320 API)
Date: 2010-06-28

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## Hierarchy For Package org.apache.hadoop.security

Package Hierarchies:
  All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.hadoop.security.Group (implements java.security.Principal)
  - org.apache.hadoop.security.SecurityUtil
  - org.apache.hadoop.security.SecurityUtil.AccessControlList
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.io.IOException
        - org.apache.hadoop.fs.permission.AccessControlException
          - org.apache.hadoop.security.AccessControlException
  - org.apache.hadoop.security.User (implements java.security.Principal)
  - org.apache.hadoop.security.UserGroupInformation (implements java.security.Principal, org.apache.hadoop.io.Writable)
    - org.apache.hadoop.security.UnixUserGroupInformation

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