http://netty.io/netty-all/: Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients. (The Netty Project) 
public final class io.netty.handler.codec.http2.CharSequenceMap<V> extends io.netty.handler.codec.DefaultHeaders<java.lang.CharSequence, V, io.netty.handler.codec.http2.CharSequenceMap<V>>
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: io.netty.handler.codec.http2.CharSequenceMap
  super_class: io.netty.handler.codec.DefaultHeaders
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http2.CharSequenceMap this
         0: .line 32
            aload 0 /* this */
            iconst_1
            invokespecial io.netty.handler.codec.http2.CharSequenceMap.<init>:(Z)V
         1: .line 33
            return
        end local 0 // io.netty.handler.codec.http2.CharSequenceMap this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/handler/codec/http2/CharSequenceMap<TV;>;

  public void <init>(boolean);
    descriptor: (Z)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.http2.CharSequenceMap this
        start local 1 // boolean caseSensitive
         0: .line 36
            aload 0 /* this */
            iload 1 /* caseSensitive */
            invokestatic io.netty.handler.codec.UnsupportedValueConverter.instance:()Lio/netty/handler/codec/UnsupportedValueConverter;
            invokespecial io.netty.handler.codec.http2.CharSequenceMap.<init>:(ZLio/netty/handler/codec/ValueConverter;)V
         1: .line 37
            return
        end local 1 // boolean caseSensitive
        end local 0 // io.netty.handler.codec.http2.CharSequenceMap this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    2     0           this  Lio/netty/handler/codec/http2/CharSequenceMap<TV;>;
            0    2     1  caseSensitive  Z
    MethodParameters:
               Name  Flags
      caseSensitive  

  public void <init>(boolean, io.netty.handler.codec.ValueConverter<V>);
    descriptor: (ZLio/netty/handler/codec/ValueConverter;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // io.netty.handler.codec.http2.CharSequenceMap this
        start local 1 // boolean caseSensitive
        start local 2 // io.netty.handler.codec.ValueConverter valueConverter
         0: .line 40
            aload 0 /* this */
            iload 1 /* caseSensitive */
            ifeq 1
            getstatic io.netty.util.AsciiString.CASE_SENSITIVE_HASHER:Lio/netty/util/HashingStrategy;
            goto 2
      StackMap locals:
      StackMap stack: uninitialized-this
         1: getstatic io.netty.util.AsciiString.CASE_INSENSITIVE_HASHER:Lio/netty/util/HashingStrategy;
      StackMap locals: uninitialized-this int io.netty.handler.codec.ValueConverter
      StackMap stack: uninitialized-this io.netty.util.HashingStrategy
         2: aload 2 /* valueConverter */
            invokespecial io.netty.handler.codec.DefaultHeaders.<init>:(Lio/netty/util/HashingStrategy;Lio/netty/handler/codec/ValueConverter;)V
         3: .line 41
            return
        end local 2 // io.netty.handler.codec.ValueConverter valueConverter
        end local 1 // boolean caseSensitive
        end local 0 // io.netty.handler.codec.http2.CharSequenceMap this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    4     0            this  Lio/netty/handler/codec/http2/CharSequenceMap<TV;>;
            0    4     1   caseSensitive  Z
            0    4     2  valueConverter  Lio/netty/handler/codec/ValueConverter<TV;>;
    Signature: (ZLio/netty/handler/codec/ValueConverter<TV;>;)V
    MethodParameters:
                Name  Flags
      caseSensitive   
      valueConverter  

  public void <init>(boolean, io.netty.handler.codec.ValueConverter<V>, );
    descriptor: (ZLio/netty/handler/codec/ValueConverter;I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=4
        start local 0 // io.netty.handler.codec.http2.CharSequenceMap this
        start local 1 // boolean caseSensitive
        start local 2 // io.netty.handler.codec.ValueConverter valueConverter
        start local 3 // int arraySizeHint
         0: .line 45
            aload 0 /* this */
            iload 1 /* caseSensitive */
            ifeq 1
            getstatic io.netty.util.AsciiString.CASE_SENSITIVE_HASHER:Lio/netty/util/HashingStrategy;
            goto 2
      StackMap locals:
      StackMap stack: uninitialized-this
         1: getstatic io.netty.util.AsciiString.CASE_INSENSITIVE_HASHER:Lio/netty/util/HashingStrategy;
      StackMap locals: uninitialized-this int io.netty.handler.codec.ValueConverter int
      StackMap stack: uninitialized-this io.netty.util.HashingStrategy
         2: aload 2 /* valueConverter */
         3: .line 46
            getstatic io.netty.handler.codec.DefaultHeaders$NameValidator.NOT_NULL:Lio/netty/handler/codec/DefaultHeaders$NameValidator;
            iload 3 /* arraySizeHint */
            invokespecial io.netty.handler.codec.DefaultHeaders.<init>:(Lio/netty/util/HashingStrategy;Lio/netty/handler/codec/ValueConverter;Lio/netty/handler/codec/DefaultHeaders$NameValidator;I)V
         4: .line 47
            return
        end local 3 // int arraySizeHint
        end local 2 // io.netty.handler.codec.ValueConverter valueConverter
        end local 1 // boolean caseSensitive
        end local 0 // io.netty.handler.codec.http2.CharSequenceMap this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    5     0            this  Lio/netty/handler/codec/http2/CharSequenceMap<TV;>;
            0    5     1   caseSensitive  Z
            0    5     2  valueConverter  Lio/netty/handler/codec/ValueConverter<TV;>;
            0    5     3   arraySizeHint  I
    Signature: (ZLio/netty/handler/codec/ValueConverter<TV;>;I)V
    MethodParameters:
                Name  Flags
      caseSensitive   
      valueConverter  
      arraySizeHint   
}
Signature: <V:Ljava/lang/Object;>Lio/netty/handler/codec/DefaultHeaders<Ljava/lang/CharSequence;TV;Lio/netty/handler/codec/http2/CharSequenceMap<TV;>;>;
SourceFile: "CharSequenceMap.java"
InnerClasses:
  public abstract NameValidator = io.netty.handler.codec.DefaultHeaders$NameValidator of io.netty.handler.codec.DefaultHeaders