public class sun.nio.cs.FastCharsetProvider extends java.nio.charset.spi.CharsetProvider
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: sun.nio.cs.FastCharsetProvider
  super_class: java.nio.charset.spi.CharsetProvider
{
  private java.util.Map<java.lang.String, java.lang.String> classMap;
    descriptor: Ljava/util/Map;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;

  private java.util.Map<java.lang.String, java.lang.String> aliasMap;
    descriptor: Ljava/util/Map;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;

  private java.util.Map<java.lang.String, java.nio.charset.Charset> cache;
    descriptor: Ljava/util/Map;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/util/Map<Ljava/lang/String;Ljava/nio/charset/Charset;>;

  private java.lang.String packagePrefix;
    descriptor: Ljava/lang/String;
    flags: (0x0002) ACC_PRIVATE

  protected void <init>(java.lang.String, java.util.Map<java.lang.String, java.lang.String>, java.util.Map<java.lang.String, java.lang.String>, java.util.Map<java.lang.String, java.nio.charset.Charset>);
    descriptor: (Ljava/lang/String;Ljava/util/Map;Ljava/util/Map;Ljava/util/Map;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=5, args_size=5
        start local 0 // sun.nio.cs.FastCharsetProvider this
        start local 1 // java.lang.String pp
        start local 2 // java.util.Map am
        start local 3 // java.util.Map cm
        start local 4 // java.util.Map c
         0: .line 56
            aload 0 /* this */
            invokespecial java.nio.charset.spi.CharsetProvider.<init>:()V
         1: .line 61
            aload 0 /* this */
            aload 1 /* pp */
            putfield sun.nio.cs.FastCharsetProvider.packagePrefix:Ljava/lang/String;
         2: .line 62
            aload 0 /* this */
            aload 2 /* am */
            putfield sun.nio.cs.FastCharsetProvider.aliasMap:Ljava/util/Map;
         3: .line 63
            aload 0 /* this */
            aload 3 /* cm */
            putfield sun.nio.cs.FastCharsetProvider.classMap:Ljava/util/Map;
         4: .line 64
            aload 0 /* this */
            aload 4 /* c */
            putfield sun.nio.cs.FastCharsetProvider.cache:Ljava/util/Map;
         5: .line 65
            return
        end local 4 // java.util.Map c
        end local 3 // java.util.Map cm
        end local 2 // java.util.Map am
        end local 1 // java.lang.String pp
        end local 0 // sun.nio.cs.FastCharsetProvider this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lsun/nio/cs/FastCharsetProvider;
            0    6     1    pp  Ljava/lang/String;
            0    6     2    am  Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;
            0    6     3    cm  Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;
            0    6     4     c  Ljava/util/Map<Ljava/lang/String;Ljava/nio/charset/Charset;>;
    Signature: (Ljava/lang/String;Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;Ljava/util/Map<Ljava/lang/String;Ljava/nio/charset/Charset;>;)V
    MethodParameters:
      Name  Flags
      pp    
      am    
      cm    
      c     

  private java.lang.String canonicalize(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // sun.nio.cs.FastCharsetProvider this
        start local 1 // java.lang.String csn
         0: .line 68
            aload 0 /* this */
            getfield sun.nio.cs.FastCharsetProvider.aliasMap:Ljava/util/Map;
            aload 1 /* csn */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.String
            astore 2 /* acn */
        start local 2 // java.lang.String acn
         1: .line 69
            aload 2 /* acn */
            ifnull 2
            aload 2 /* acn */
            goto 3
      StackMap locals: java.lang.String
      StackMap stack:
         2: aload 1 /* csn */
      StackMap locals:
      StackMap stack: java.lang.String
         3: areturn
        end local 2 // java.lang.String acn
        end local 1 // java.lang.String csn
        end local 0 // sun.nio.cs.FastCharsetProvider this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lsun/nio/cs/FastCharsetProvider;
            0    4     1   csn  Ljava/lang/String;
            1    4     2   acn  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      csn   

  private static java.lang.String toLower(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=4, locals=6, args_size=1
        start local 0 // java.lang.String s
         0: .line 75
            aload 0 /* s */
            invokevirtual java.lang.String.length:()I
            istore 1 /* n */
        start local 1 // int n
         1: .line 76
            iconst_1
            istore 2 /* allLower */
        start local 2 // boolean allLower
         2: .line 77
            iconst_0
            istore 3 /* i */
        start local 3 // int i
         3: goto 9
         4: .line 78
      StackMap locals: int int int
      StackMap stack:
            aload 0 /* s */
            iload 3 /* i */
            invokevirtual java.lang.String.charAt:(I)C
            istore 4 /* c */
        start local 4 // int c
         5: .line 79
            iload 4 /* c */
            bipush 65
            isub
            bipush 90
            iload 4 /* c */
            isub
            ior
            iflt 8
         6: .line 80
            iconst_0
            istore 2 /* allLower */
         7: .line 81
            goto 10
        end local 4 // int c
         8: .line 77
      StackMap locals:
      StackMap stack:
            iinc 3 /* i */ 1
      StackMap locals:
      StackMap stack:
         9: iload 3 /* i */
            iload 1 /* n */
            if_icmplt 4
        end local 3 // int i
        10: .line 84
      StackMap locals:
      StackMap stack:
            iload 2 /* allLower */
            ifeq 12
        11: .line 85
            aload 0 /* s */
            areturn
        12: .line 86
      StackMap locals:
      StackMap stack:
            iload 1 /* n */
            newarray 5
            astore 3 /* ca */
        start local 3 // char[] ca
        13: .line 87
            iconst_0
            istore 4 /* i */
        start local 4 // int i
        14: goto 20
        15: .line 88
      StackMap locals: char[] int
      StackMap stack:
            aload 0 /* s */
            iload 4 /* i */
            invokevirtual java.lang.String.charAt:(I)C
            istore 5 /* c */
        start local 5 // int c
        16: .line 89
            iload 5 /* c */
            bipush 65
            isub
            bipush 90
            iload 5 /* c */
            isub
            ior
            iflt 18
        17: .line 90
            aload 3 /* ca */
            iload 4 /* i */
            iload 5 /* c */
            bipush 32
            iadd
            i2c
            castore
            goto 19
        18: .line 92
      StackMap locals: int
      StackMap stack:
            aload 3 /* ca */
            iload 4 /* i */
            iload 5 /* c */
            i2c
            castore
        end local 5 // int c
        19: .line 87
      StackMap locals:
      StackMap stack:
            iinc 4 /* i */ 1
      StackMap locals:
      StackMap stack:
        20: iload 4 /* i */
            iload 1 /* n */
            if_icmplt 15
        end local 4 // int i
        21: .line 94
            new java.lang.String
            dup
            aload 3 /* ca */
            invokespecial java.lang.String.<init>:([C)V
            areturn
        end local 3 // char[] ca
        end local 2 // boolean allLower
        end local 1 // int n
        end local 0 // java.lang.String s
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   22     0         s  Ljava/lang/String;
            1   22     1         n  I
            2   22     2  allLower  Z
            3   10     3         i  I
            5    8     4         c  I
           13   22     3        ca  [C
           14   21     4         i  I
           16   19     5         c  I
    MethodParameters:
      Name  Flags
      s     

  private java.nio.charset.Charset lookup(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/nio/charset/Charset;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=6, args_size=2
        start local 0 // sun.nio.cs.FastCharsetProvider this
        start local 1 // java.lang.String charsetName
         0: .line 99
            aload 0 /* this */
            aload 1 /* charsetName */
            invokestatic sun.nio.cs.FastCharsetProvider.toLower:(Ljava/lang/String;)Ljava/lang/String;
            invokevirtual sun.nio.cs.FastCharsetProvider.canonicalize:(Ljava/lang/String;)Ljava/lang/String;
            astore 2 /* csn */
        start local 2 // java.lang.String csn
         1: .line 102
            aload 0 /* this */
            getfield sun.nio.cs.FastCharsetProvider.cache:Ljava/util/Map;
            aload 2 /* csn */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.nio.charset.Charset
            astore 3 /* cs */
        start local 3 // java.nio.charset.Charset cs
         2: .line 103
            aload 3 /* cs */
            ifnull 4
         3: .line 104
            aload 3 /* cs */
            areturn
         4: .line 107
      StackMap locals: java.lang.String java.nio.charset.Charset
      StackMap stack:
            aload 0 /* this */
            getfield sun.nio.cs.FastCharsetProvider.classMap:Ljava/util/Map;
            aload 2 /* csn */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.String
            astore 4 /* cln */
        start local 4 // java.lang.String cln
         5: .line 108
            aload 4 /* cln */
            ifnonnull 7
         6: .line 109
            aconst_null
            areturn
         7: .line 111
      StackMap locals: java.lang.String
      StackMap stack:
            aload 4 /* cln */
            ldc "US_ASCII"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 11
         8: .line 112
            new sun.nio.cs.US_ASCII
            dup
            invokespecial sun.nio.cs.US_ASCII.<init>:()V
            astore 3 /* cs */
         9: .line 113
            aload 0 /* this */
            getfield sun.nio.cs.FastCharsetProvider.cache:Ljava/util/Map;
            aload 2 /* csn */
            aload 3 /* cs */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        10: .line 114
            aload 3 /* cs */
            areturn
        11: .line 119
      StackMap locals:
      StackMap stack:
            new java.lang.StringBuilder
            dup
            aload 0 /* this */
            getfield sun.nio.cs.FastCharsetProvider.packagePrefix:Ljava/lang/String;
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc "."
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 4 /* cln */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
        12: .line 120
            iconst_1
        13: .line 121
            aload 0 /* this */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokevirtual java.lang.Class.getClassLoader:()Ljava/lang/ClassLoader;
        14: .line 119
            invokestatic java.lang.Class.forName:(Ljava/lang/String;ZLjava/lang/ClassLoader;)Ljava/lang/Class;
            astore 5 /* c */
        start local 5 // java.lang.Class c
        15: .line 122
            aload 5 /* c */
            invokevirtual java.lang.Class.newInstance:()Ljava/lang/Object;
            checkcast java.nio.charset.Charset
            astore 3 /* cs */
        16: .line 123
            aload 0 /* this */
            getfield sun.nio.cs.FastCharsetProvider.cache:Ljava/util/Map;
            aload 2 /* csn */
            aload 3 /* cs */
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        17: .line 124
            aload 3 /* cs */
        18: areturn
        end local 5 // java.lang.Class c
        19: .line 125
      StackMap locals:
      StackMap stack: java.lang.ClassNotFoundException
            pop
        20: .line 126
            aconst_null
            areturn
        21: .line 127
      StackMap locals:
      StackMap stack: java.lang.IllegalAccessException
            pop
        22: .line 128
            aconst_null
            areturn
        23: .line 129
      StackMap locals:
      StackMap stack: java.lang.InstantiationException
            pop
        24: .line 130
            aconst_null
            areturn
        end local 4 // java.lang.String cln
        end local 3 // java.nio.charset.Charset cs
        end local 2 // java.lang.String csn
        end local 1 // java.lang.String charsetName
        end local 0 // sun.nio.cs.FastCharsetProvider this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   25     0         this  Lsun/nio/cs/FastCharsetProvider;
            0   25     1  charsetName  Ljava/lang/String;
            1   25     2          csn  Ljava/lang/String;
            2   25     3           cs  Ljava/nio/charset/Charset;
            5   25     4          cln  Ljava/lang/String;
           15   19     5            c  Ljava/lang/Class;
      Exception table:
        from    to  target  type
          11    18      19  Class java.lang.ClassNotFoundException
          11    18      21  Class java.lang.IllegalAccessException
          11    18      23  Class java.lang.InstantiationException
    MethodParameters:
             Name  Flags
      charsetName  

  public final java.nio.charset.Charset charsetForName(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/nio/charset/Charset;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // sun.nio.cs.FastCharsetProvider this
        start local 1 // java.lang.String charsetName
         0: .line 135
            aload 0 /* this */
            dup
            astore 2
            monitorenter
         1: .line 136
            aload 0 /* this */
            aload 0 /* this */
            aload 1 /* charsetName */
            invokevirtual sun.nio.cs.FastCharsetProvider.canonicalize:(Ljava/lang/String;)Ljava/lang/String;
            invokevirtual sun.nio.cs.FastCharsetProvider.lookup:(Ljava/lang/String;)Ljava/nio/charset/Charset;
            aload 2
            monitorexit
         2: areturn
         3: .line 135
      StackMap locals: sun.nio.cs.FastCharsetProvider java.lang.String sun.nio.cs.FastCharsetProvider
      StackMap stack: java.lang.Throwable
            aload 2
            monitorexit
         4: athrow
        end local 1 // java.lang.String charsetName
        end local 0 // sun.nio.cs.FastCharsetProvider this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    5     0         this  Lsun/nio/cs/FastCharsetProvider;
            0    5     1  charsetName  Ljava/lang/String;
      Exception table:
        from    to  target  type
           1     2       3  any
           3     4       3  any
    MethodParameters:
             Name  Flags
      charsetName  

  public final java.util.Iterator<java.nio.charset.Charset> charsets();
    descriptor: ()Ljava/util/Iterator;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // sun.nio.cs.FastCharsetProvider this
         0: .line 142
            new sun.nio.cs.FastCharsetProvider$1
            dup
            aload 0 /* this */
            invokespecial sun.nio.cs.FastCharsetProvider$1.<init>:(Lsun/nio/cs/FastCharsetProvider;)V
            areturn
        end local 0 // sun.nio.cs.FastCharsetProvider this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/nio/cs/FastCharsetProvider;
    Signature: ()Ljava/util/Iterator<Ljava/nio/charset/Charset;>;
}
SourceFile: "FastCharsetProvider.java"
NestMembers:
  sun.nio.cs.FastCharsetProvider$1
InnerClasses:
  sun.nio.cs.FastCharsetProvider$1