https://tomcat.apache.org/: Tomcat Servlet Engine Core Classes and Standard implementations 
public final class org.apache.catalina.util.ParameterMap<K, V> implements java.util.Map<K, V>, java.io.Serializable
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.catalina.util.ParameterMap
  super_class: java.lang.Object
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 2

  private final java.util.Map<K, V> delegatedMap;
    descriptor: Ljava/util/Map;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Map<TK;TV;>;

  private final java.util.Map<K, V> unmodifiableDelegatedMap;
    descriptor: Ljava/util/Map;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Map<TK;TV;>;

  private boolean locked;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  private static final org.apache.tomcat.util.res.StringManager sm;
    descriptor: Lorg/apache/tomcat/util/res/StringManager;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 122
            ldc "org.apache.catalina.util"
            invokestatic org.apache.tomcat.util.res.StringManager.getManager:(Ljava/lang/String;)Lorg/apache/tomcat/util/res/StringManager;
            putstatic org.apache.catalina.util.ParameterMap.sm:Lorg/apache/tomcat/util/res/StringManager;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.catalina.util.ParameterMap this
         0: .line 53
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 98
            aload 0 /* this */
            iconst_0
            putfield org.apache.catalina.util.ParameterMap.locked:Z
         2: .line 54
            aload 0 /* this */
            new java.util.LinkedHashMap
            dup
            invokespecial java.util.LinkedHashMap.<init>:()V
            putfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
         3: .line 55
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokestatic java.util.Collections.unmodifiableMap:(Ljava/util/Map;)Ljava/util/Map;
            putfield org.apache.catalina.util.ParameterMap.unmodifiableDelegatedMap:Ljava/util/Map;
         4: .line 56
            return
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;

  public void <init>(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // int initialCapacity
         0: .line 65
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 98
            aload 0 /* this */
            iconst_0
            putfield org.apache.catalina.util.ParameterMap.locked:Z
         2: .line 66
            aload 0 /* this */
            new java.util.LinkedHashMap
            dup
            iload 1 /* initialCapacity */
            invokespecial java.util.LinkedHashMap.<init>:(I)V
            putfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
         3: .line 67
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokestatic java.util.Collections.unmodifiableMap:(Ljava/util/Map;)Ljava/util/Map;
            putfield org.apache.catalina.util.ParameterMap.unmodifiableDelegatedMap:Ljava/util/Map;
         4: .line 68
            return
        end local 1 // int initialCapacity
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    5     0             this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    5     1  initialCapacity  I
    MethodParameters:
                 Name  Flags
      initialCapacity  

  public void <init>(int, float);
    descriptor: (IF)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=3
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // int initialCapacity
        start local 2 // float loadFactor
         0: .line 78
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 98
            aload 0 /* this */
            iconst_0
            putfield org.apache.catalina.util.ParameterMap.locked:Z
         2: .line 79
            aload 0 /* this */
            new java.util.LinkedHashMap
            dup
            iload 1 /* initialCapacity */
            fload 2 /* loadFactor */
            invokespecial java.util.LinkedHashMap.<init>:(IF)V
            putfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
         3: .line 80
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokestatic java.util.Collections.unmodifiableMap:(Ljava/util/Map;)Ljava/util/Map;
            putfield org.apache.catalina.util.ParameterMap.unmodifiableDelegatedMap:Ljava/util/Map;
         4: .line 81
            return
        end local 2 // float loadFactor
        end local 1 // int initialCapacity
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    5     0             this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    5     1  initialCapacity  I
            0    5     2       loadFactor  F
    MethodParameters:
                 Name  Flags
      initialCapacity  
      loadFactor       

  public void <init>(java.util.Map<K, V>);
    descriptor: (Ljava/util/Map;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // java.util.Map map
         0: .line 89
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 98
            aload 0 /* this */
            iconst_0
            putfield org.apache.catalina.util.ParameterMap.locked:Z
         2: .line 90
            aload 0 /* this */
            new java.util.LinkedHashMap
            dup
            aload 1 /* map */
            invokespecial java.util.LinkedHashMap.<init>:(Ljava/util/Map;)V
            putfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
         3: .line 91
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokestatic java.util.Collections.unmodifiableMap:(Ljava/util/Map;)Ljava/util/Map;
            putfield org.apache.catalina.util.ParameterMap.unmodifiableDelegatedMap:Ljava/util/Map;
         4: .line 92
            return
        end local 1 // java.util.Map map
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    5     1   map  Ljava/util/Map<TK;TV;>;
    Signature: (Ljava/util/Map<TK;TV;>;)V
    MethodParameters:
      Name  Flags
      map   

  public boolean isLocked();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.catalina.util.ParameterMap this
         0: .line 105
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.locked:Z
            ireturn
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;

  public void setLocked(boolean);
    descriptor: (Z)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // boolean locked
         0: .line 115
            aload 0 /* this */
            iload 1 /* locked */
            putfield org.apache.catalina.util.ParameterMap.locked:Z
         1: .line 116
            return
        end local 1 // boolean locked
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    2     1  locked  Z
    MethodParameters:
        Name  Flags
      locked  

  public void clear();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.catalina.util.ParameterMap this
         0: .line 132
            aload 0 /* this */
            invokevirtual org.apache.catalina.util.ParameterMap.checkLocked:()V
         1: .line 133
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokeinterface java.util.Map.clear:()V
         2: .line 134
            return
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;

  public V put(K, );
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // java.lang.Object key
        start local 2 // java.lang.Object value
         0: .line 144
            aload 0 /* this */
            invokevirtual org.apache.catalina.util.ParameterMap.checkLocked:()V
         1: .line 145
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            aload 1 /* key */
            aload 2 /* value */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 2 // java.lang.Object value
        end local 1 // java.lang.Object key
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    2     1    key  TK;
            0    2     2  value  TV;
    Signature: (TK;TV;)TV;
    MethodParameters:
       Name  Flags
      key    
      value  

  public void putAll(java.util.Map<? extends K, ? extends V>);
    descriptor: (Ljava/util/Map;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // java.util.Map map
         0: .line 156
            aload 0 /* this */
            invokevirtual org.apache.catalina.util.ParameterMap.checkLocked:()V
         1: .line 157
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            aload 1 /* map */
            invokeinterface java.util.Map.putAll:(Ljava/util/Map;)V
         2: .line 158
            return
        end local 1 // java.util.Map map
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    3     1   map  Ljava/util/Map<+TK;+TV;>;
    Signature: (Ljava/util/Map<+TK;+TV;>;)V
    MethodParameters:
      Name  Flags
      map   

  public V remove();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // java.lang.Object key
         0: .line 168
            aload 0 /* this */
            invokevirtual org.apache.catalina.util.ParameterMap.checkLocked:()V
         1: .line 169
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            aload 1 /* key */
            invokeinterface java.util.Map.remove:(Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 1 // java.lang.Object key
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    2     1   key  Ljava/lang/Object;
    Signature: (Ljava/lang/Object;)TV;
    MethodParameters:
      Name  Flags
      key   

  private void checkLocked();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.apache.catalina.util.ParameterMap this
         0: .line 174
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.locked:Z
            ifeq 2
         1: .line 175
            new java.lang.IllegalStateException
            dup
            getstatic org.apache.catalina.util.ParameterMap.sm:Lorg/apache/tomcat/util/res/StringManager;
            ldc "parameterMap.locked"
            invokevirtual org.apache.tomcat.util.res.StringManager.getString:(Ljava/lang/String;)Ljava/lang/String;
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 177
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;

  public int size();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.catalina.util.ParameterMap this
         0: .line 182
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokeinterface java.util.Map.size:()I
            ireturn
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;

  public boolean isEmpty();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.catalina.util.ParameterMap this
         0: .line 188
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokeinterface java.util.Map.isEmpty:()Z
            ireturn
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;

  public boolean containsKey(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // java.lang.Object key
         0: .line 194
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            aload 1 /* key */
            invokeinterface java.util.Map.containsKey:(Ljava/lang/Object;)Z
            ireturn
        end local 1 // java.lang.Object key
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    1     1   key  Ljava/lang/Object;
    MethodParameters:
      Name  Flags
      key   

  public boolean containsValue(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // java.lang.Object value
         0: .line 200
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            aload 1 /* value */
            invokeinterface java.util.Map.containsValue:(Ljava/lang/Object;)Z
            ireturn
        end local 1 // java.lang.Object value
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    1     1  value  Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      value  

  public V get();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.catalina.util.ParameterMap this
        start local 1 // java.lang.Object key
         0: .line 206
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            aload 1 /* key */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 1 // java.lang.Object key
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
            0    1     1   key  Ljava/lang/Object;
    Signature: (Ljava/lang/Object;)TV;
    MethodParameters:
      Name  Flags
      key   

  public java.util.Set<K> keySet();
    descriptor: ()Ljava/util/Set;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.catalina.util.ParameterMap this
         0: .line 218
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.locked:Z
            ifeq 2
         1: .line 219
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.unmodifiableDelegatedMap:Ljava/util/Map;
            invokeinterface java.util.Map.keySet:()Ljava/util/Set;
            areturn
         2: .line 222
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokeinterface java.util.Map.keySet:()Ljava/util/Set;
            areturn
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
    Signature: ()Ljava/util/Set<TK;>;

  public java.util.Collection<V> values();
    descriptor: ()Ljava/util/Collection;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.catalina.util.ParameterMap this
         0: .line 234
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.locked:Z
            ifeq 2
         1: .line 235
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.unmodifiableDelegatedMap:Ljava/util/Map;
            invokeinterface java.util.Map.values:()Ljava/util/Collection;
            areturn
         2: .line 238
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokeinterface java.util.Map.values:()Ljava/util/Collection;
            areturn
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
    Signature: ()Ljava/util/Collection<TV;>;

  public java.util.Set<java.util.Map$Entry<K, V>> entrySet();
    descriptor: ()Ljava/util/Set;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.catalina.util.ParameterMap this
         0: .line 250
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.locked:Z
            ifeq 2
         1: .line 251
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.unmodifiableDelegatedMap:Ljava/util/Map;
            invokeinterface java.util.Map.entrySet:()Ljava/util/Set;
            areturn
         2: .line 254
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.catalina.util.ParameterMap.delegatedMap:Ljava/util/Map;
            invokeinterface java.util.Map.entrySet:()Ljava/util/Set;
            areturn
        end local 0 // org.apache.catalina.util.ParameterMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/catalina/util/ParameterMap<TK;TV;>;
    Signature: ()Ljava/util/Set<Ljava/util/Map$Entry<TK;TV;>;>;
}
Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>Ljava/lang/Object;Ljava/util/Map<TK;TV;>;Ljava/io/Serializable;
SourceFile: "ParameterMap.java"
InnerClasses:
  public abstract Entry = java.util.Map$Entry of java.util.Map