# OpenORB 1.3.1: org.openorb.util Class Hierarchy

## Hierarchy For Package org.openorb.util

Package Hierarchies:
  All Packages

## Class Hierarchy

- class java.lang.Object
  - class java.util.AbstractCollection (implements java.util.Collection)
    - class java.util.AbstractList (implements java.util.List)
      - class java.util.AbstractSequentialList
        - class org.openorb.util.MergeStack
    - class java.util.AbstractSet (implements java.util.Set)
      - class org.openorb.util.WeakHashSet (implements java.util.Set)
  - class java.util.AbstractMap (implements java.util.Map)
    - class java.util.TreeMap (implements java.lang.Cloneable, java.io.Serializable, java.util.SortedMap)
      - class org.openorb.util.MapNamingContext
    - class org.openorb.util.WeakValueHashMap (implements java.util.Map)
  - class org.openorb.util.CharacterCache
  - class java.lang.ClassLoader
    - class org.openorb.util.URLLoader
  - class org.openorb.util.ContextUtilities
  - class org.openorb.util.CreateORBProperties
  - class org.openorb.util.CurrentStack
  - class org.openorb.util.ExceptionTool
  - class org.openorb.util.IdentityKey
  - class org.openorb.util.IORDump
  - class org.openorb.util.JREVersion
  - class org.openorb.util.NamingUtils
  - class org.openorb.util.NumberCache
  - class org.openorb.util.ORBFactory
  - class org.openorb.util.Profiler
  - class org.openorb.util.RepoIDHelper
  - class java.lang.Throwable (implements java.io.Serializable)
    - class java.lang.Error
      - class org.openorb.util.Trace.IllegalConditionError
    - class org.openorb.util.Trace.StackSnapshot
  - class org.openorb.util.Trace
  - class org.openorb.util.ZipHandle
  - class org.openorb.util.ZipUtil