# Hierarchy For Package org.apache.solr.util

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - java.util.AbstractCollection<E> (implements java.util.Collection<E>)
    - java.util.AbstractSet<E> (implements java.util.Set<E>)
      - java.util.TreeSet<E> (implements java.lang.Cloneable, java.util.NavigableSet<E>, java.io.Serializable)
        - org.apache.solr.util.BoundedTreeSet<E>
  - org.apache.solr.util.AdjustableSemaphore
  - org.apache.solr.util.CommandOperation
  - org.apache.solr.util.ConcurrentLFUCache<K,V> (implements org.apache.solr.common.util.Cache<K,V>)
  - org.apache.solr.util.ConcurrentLFUCache.CacheEntry<K,V> (implements java.lang.Comparable<T>)
  - org.apache.solr.util.ConcurrentLFUCache.Stats
  - org.apache.solr.util.ConcurrentLRUCache<K,V> (implements org.apache.solr.common.util.Cache<K,V>)
  - org.apache.solr.util.ConcurrentLRUCache.CacheEntry<K,V> (implements java.lang.Comparable<T>)
  - org.apache.solr.util.ConcurrentLRUCache.Stats
  - org.apache.solr.util.CryptoKeys
  - org.apache.solr.util.CryptoKeys.RSAKeyPair
  - org.apache.solr.util.DateMathParser
  - org.apache.solr.util.DefaultSolrThreadFactory (implements java.util.concurrent.ThreadFactory)
  - org.apache.solr.util.DistanceUnits
  - org.apache.solr.util.DOMUtil
  - org.apache.solr.util.FileUtils
  - com.google.common.collect.ForwardingObject
    - com.google.common.collect.ForwardingMap<K,V> (implements java.util.Map<K,V>)
      - org.apache.solr.util.MapListener<K,V>
  - org.apache.solr.util.FSHDFSUtils
  - org.apache.solr.util.HdfsUtil
  - java.io.InputStream (implements java.io.Closeable)
    - org.apache.solr.util.PropertiesInputStream
  - org.noggit.JSONParser
    - org.apache.solr.util.RecordingJSONParser
  - org.apache.log4j.Layout (implements org.apache.log4j.spi.OptionHandler)
    - org.apache.solr.util.SolrLogLayout
  - org.apache.solr.util.LongPriorityQueue
  - org.apache.solr.util.NumberUtils
  - java.io.OutputStream (implements java.io.Closeable, java.io.Flushable)
    - java.io.ByteArrayOutputStream
      - org.apache.solr.util.SimplePostTool.BAOS
    - org.apache.solr.util.PropertiesOutputStream
  - org.apache.solr.util.PrimUtils
  - org.apache.solr.util.PrimUtils.IntComparator
  - org.apache.solr.util.PropertiesUtil
  - org.apache.lucene.util.QueryBuilder
    - org.apache.solr.parser.SolrQueryParserBase
      - org.apache.solr.parser.QueryParser (implements org.apache.solr.parser.QueryParserConstants)
        - org.apache.solr.search.SolrQueryParser
          - org.apache.solr.util.SolrPluginUtils.DisjunctionMaxQueryParser
  - org.apache.solr.util.RefCounted<Type>
  - org.apache.solr.util.RegexFileFilter (implements java.io.FileFilter)
  - org.apache.solr.util.RTimer
    - org.apache.solr.util.RTimerTree
  - org.apache.solr.util.SimplePostTool
  - org.apache.solr.util.SimplePostTool.PageFetcherResult
  - org.apache.solr.util.SolrCLI
  - org.apache.solr.util.SolrCLI.ToolBase (implements org.apache.solr.util.SolrCLI.Tool)
    - org.apache.solr.util.SolrCLI.ApiTool
    - org.apache.solr.util.SolrCLI.AssertTool
    - org.apache.solr.util.SolrCLI.ConfigSetDownloadTool
    - org.apache.solr.util.SolrCLI.ConfigSetUploadTool
    - org.apache.solr.util.SolrCLI.ConfigTool
    - org.apache.solr.util.SolrCLI.CreateCollectionTool
    - org.apache.solr.util.SolrCLI.CreateCoreTool
    - org.apache.solr.util.SolrCLI.CreateTool
    - org.apache.solr.util.SolrCLI.DeleteTool
    - org.apache.solr.util.SolrCLI.RunExampleTool
    - org.apache.solr.util.SolrCLI.SolrCloudTool
      - org.apache.solr.util.SolrCLI.HealthcheckTool
    - org.apache.solr.util.SolrCLI.StatusTool
    - org.apache.solr.util.SolrCLI.UtilsTool
    - org.apache.solr.util.SolrCLI.ZkCpTool
    - org.apache.solr.util.SolrCLI.ZkLsTool
    - org.apache.solr.util.SolrCLI.ZkMvTool
    - org.apache.solr.util.SolrCLI.ZkRmTool
  - org.apache.solr.util.SolrLogLayout.CoreInfo
  - org.apache.solr.util.SolrLogLayout.Method
  - org.apache.solr.util.SolrPluginUtils
  - org.apache.solr.util.SolrPluginUtils.DisjunctionMaxQueryParser.Alias
  - org.apache.solr.util.SolrPluginUtils.IdentityRegenerator (implements org.apache.solr.search.CacheRegenerator)
  - org.apache.solr.util.SpatialUtils
  - org.apache.solr.util.SystemIdResolver (implements org.xml.sax.EntityResolver, org.xml.sax.ext.EntityResolver2)
  - org.apache.solr.util.TestInjection
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Error
      - java.lang.VirtualMachineError
        - java.lang.OutOfMemoryError
          - org.apache.solr.util.TestInjection.TestShutdownFailError
  - org.apache.solr.util.TimeOut
  - org.apache.solr.util.TimeZoneUtils
  - org.apache.solr.util.VersionedFile
  - java.io.Writer (implements java.lang.Appendable, java.io.Closeable, java.io.Flushable)
    - org.apache.solr.util.FastWriter

## Interface Hierarchy

- org.apache.solr.util.ConcurrentLFUCache.EvictionListener<K,V>
- org.apache.solr.util.ConcurrentLRUCache.EvictionListener<K,V>
- org.apache.solr.util.FSHDFSUtils.CallerInfo
- org.apache.solr.util.RTimer.TimerImpl
- org.apache.solr.util.SolrCLI.Tool
- org.apache.solr.util.SolrLogLayout.TG

## Enum Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)
    - org.apache.solr.util.PivotListEntry

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