# Hierarchy For Package org.springframework.util

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - java.util.AbstractMap<K,V> (implements java.util.Map<K,V>)
    - org.springframework.util.ConcurrentReferenceHashMap<K,V> (implements java.util.concurrent.ConcurrentMap<K,V>)
    - java.util.HashMap<K,V> (implements java.lang.Cloneable, java.util.Map<K,V>, java.io.Serializable)
      - java.util.LinkedHashMap<K,V> (implements java.util.Map<K,V>)
        - org.springframework.util.LinkedCaseInsensitiveMap<V>
  - org.springframework.util.AlternativeJdkIdGenerator (implements org.springframework.util.IdGenerator)
  - org.springframework.util.AntPathMatcher (implements org.springframework.util.PathMatcher)
  - org.springframework.util.AntPathMatcher.AntPathStringMatcher
  - org.springframework.util.AntPathMatcher.AntPatternComparator (implements java.util.Comparator<T>)
  - org.springframework.util.Assert
  - org.springframework.util.AutoPopulatingList<E> (implements java.util.List<E>, java.io.Serializable)
  - org.springframework.util.ClassUtils
  - org.springframework.util.CollectionUtils
  - org.springframework.util.CompositeIterator<E> (implements java.util.Iterator<E>)
  - org.springframework.util.ConcurrencyThrottleSupport (implements java.io.Serializable)
  - org.springframework.util.ConcurrentReferenceHashMap.Entry<K,V> (implements java.util.Map.Entry<K,V>)
  - org.springframework.util.ConcurrentReferenceHashMap.ReferenceManager
  - org.springframework.util.CustomizableThreadCreator (implements java.io.Serializable)
  - org.springframework.util.DefaultPropertiesPersister (implements org.springframework.util.PropertiesPersister)
  - org.springframework.util.DigestUtils
  - org.springframework.util.FileCopyUtils
  - org.springframework.util.FileSystemUtils
  - org.springframework.util.LinkedMultiValueMap<K,V> (implements org.springframework.util.MultiValueMap<K,V>, java.io.Serializable)
  - org.springframework.util.Log4jConfigurer
  - org.springframework.util.MethodInvoker
  - org.springframework.util.MimeType (implements java.lang.Comparable<T>, java.io.Serializable)
  - org.springframework.util.MimeType.SpecificityComparator<T> (implements java.util.Comparator<T>)
  - org.springframework.util.MimeTypeUtils
  - org.springframework.util.NumberUtils
  - org.springframework.util.ObjectUtils
  - java.io.OutputStream (implements java.io.Closeable, java.io.Flushable)
    - java.io.ByteArrayOutputStream
      - org.springframework.util.ResizableByteArrayOutputStream
  - org.springframework.util.PatternMatchUtils
  - org.springframework.util.PropertyPlaceholderHelper
  - java.util.concurrent.locks.ReentrantLock (implements java.util.concurrent.locks.Lock, java.io.Serializable)
    - org.springframework.util.ConcurrentReferenceHashMap.Segment
  - org.springframework.util.ReflectionUtils
  - org.springframework.util.ResourceUtils
  - org.springframework.util.SerializationUtils
  - org.springframework.util.SocketUtils
  - org.springframework.util.StopWatch
  - org.springframework.util.StopWatch.TaskInfo
  - org.springframework.util.StreamUtils
  - org.springframework.util.StringUtils
  - org.springframework.util.SystemPropertyUtils
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.lang.RuntimeException
        - org.springframework.util.AutoPopulatingList.ElementInstantiationException
        - java.lang.IllegalArgumentException
          - org.springframework.util.InvalidMimeTypeException
  - org.springframework.util.TypeUtils
  - org.springframework.util.WeakReferenceMonitor
  - java.io.Writer (implements java.lang.Appendable, java.io.Closeable, java.io.Flushable)
    - org.springframework.util.CommonsLogWriter

## Interface Hierarchy

- org.springframework.util.AutoPopulatingList.ElementFactory<E>
- org.springframework.util.ConcurrentReferenceHashMap.Reference<K,V>
- org.springframework.util.ErrorHandler
- org.springframework.util.IdGenerator
- java.util.Map<K,V>
  - org.springframework.util.MultiValueMap<K,V>
- org.springframework.util.PathMatcher
- org.springframework.util.PropertiesPersister
- org.springframework.util.PropertyPlaceholderHelper.PlaceholderResolver
- org.springframework.util.ReflectionUtils.FieldCallback
- org.springframework.util.ReflectionUtils.FieldFilter
- org.springframework.util.ReflectionUtils.MethodCallback
- org.springframework.util.ReflectionUtils.MethodFilter
- org.springframework.util.StringValueResolver
- org.springframework.util.WeakReferenceMonitor.ReleaseListener

## Enum Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)
    - org.springframework.util.ConcurrentReferenceHashMap.ReferenceType
    - org.springframework.util.ConcurrentReferenceHashMap.Restructure