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 class io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder implements io.netty.handler.codec.http2.Http2HeadersDecoder, io.netty.handler.codec.http2.Http2HeadersDecoder$Configuration
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder
  super_class: java.lang.Object
{
  private static final float HEADERS_COUNT_WEIGHT_NEW;
    descriptor: F
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 0.2

  private static final float HEADERS_COUNT_WEIGHT_HISTORICAL;
    descriptor: F
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 0.8

  private final io.netty.handler.codec.http2.HpackDecoder hpackDecoder;
    descriptor: Lio/netty/handler/codec/http2/HpackDecoder;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final boolean validateHeaders;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private float headerArraySizeAccumulator;
    descriptor: F
    flags: (0x0002) ACC_PRIVATE

  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.DefaultHttp2HeadersDecoder this
         0: .line 42
            aload 0 /* this */
            iconst_1
            invokespecial io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.<init>:(Z)V
         1: .line 43
            return
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;

  public void <init>(boolean);
    descriptor: (Z)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
        start local 1 // boolean validateHeaders
         0: .line 46
            aload 0 /* this */
            iload 1 /* validateHeaders */
            ldc 8192
            invokespecial io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.<init>:(ZJ)V
         1: .line 47
            return
        end local 1 // boolean validateHeaders
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    2     0             this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;
            0    2     1  validateHeaders  Z
    MethodParameters:
                 Name  Flags
      validateHeaders  

  public void <init>(boolean, long);
    descriptor: (ZJ)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=3
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
        start local 1 // boolean validateHeaders
        start local 2 // long maxHeaderListSize
         0: .line 58
            aload 0 /* this */
            iload 1 /* validateHeaders */
            lload 2 /* maxHeaderListSize */
            bipush 32
            invokespecial io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.<init>:(ZJI)V
         1: .line 59
            return
        end local 2 // long maxHeaderListSize
        end local 1 // boolean validateHeaders
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    2     0               this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;
            0    2     1    validateHeaders  Z
            0    2     2  maxHeaderListSize  J
    MethodParameters:
                   Name  Flags
      validateHeaders    
      maxHeaderListSize  

  public void <init>(boolean, long, int);
    descriptor: (ZJI)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=5, args_size=4
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
        start local 1 // boolean validateHeaders
        start local 2 // long maxHeaderListSize
        start local 4 // int initialHuffmanDecodeCapacity
         0: .line 72
            aload 0 /* this */
            iload 1 /* validateHeaders */
            new io.netty.handler.codec.http2.HpackDecoder
            dup
            lload 2 /* maxHeaderListSize */
            iload 4 /* initialHuffmanDecodeCapacity */
            invokespecial io.netty.handler.codec.http2.HpackDecoder.<init>:(JI)V
            invokespecial io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.<init>:(ZLio/netty/handler/codec/http2/HpackDecoder;)V
         1: .line 73
            return
        end local 4 // int initialHuffmanDecodeCapacity
        end local 2 // long maxHeaderListSize
        end local 1 // boolean validateHeaders
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot                          Name  Signature
            0    2     0                          this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;
            0    2     1               validateHeaders  Z
            0    2     2             maxHeaderListSize  J
            0    2     4  initialHuffmanDecodeCapacity  I
    MethodParameters:
                              Name  Flags
      validateHeaders               
      maxHeaderListSize             
      initialHuffmanDecodeCapacity  

  void <init>(boolean, io.netty.handler.codec.http2.HpackDecoder);
    descriptor: (ZLio/netty/handler/codec/http2/HpackDecoder;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
        start local 1 // boolean validateHeaders
        start local 2 // io.netty.handler.codec.http2.HpackDecoder hpackDecoder
         0: .line 79
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 39
            aload 0 /* this */
            ldc 8.0
            putfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.headerArraySizeAccumulator:F
         2: .line 80
            aload 0 /* this */
            aload 2 /* hpackDecoder */
            ldc "hpackDecoder"
            invokestatic io.netty.util.internal.ObjectUtil.checkNotNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            checkcast io.netty.handler.codec.http2.HpackDecoder
            putfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.hpackDecoder:Lio/netty/handler/codec/http2/HpackDecoder;
         3: .line 81
            aload 0 /* this */
            iload 1 /* validateHeaders */
            putfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.validateHeaders:Z
         4: .line 82
            return
        end local 2 // io.netty.handler.codec.http2.HpackDecoder hpackDecoder
        end local 1 // boolean validateHeaders
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    5     0             this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;
            0    5     1  validateHeaders  Z
            0    5     2     hpackDecoder  Lio/netty/handler/codec/http2/HpackDecoder;
    MethodParameters:
                 Name  Flags
      validateHeaders  
      hpackDecoder     

  public void maxHeaderTableSize(long);
    descriptor: (J)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
        start local 1 // long max
         0: .line 86
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.hpackDecoder:Lio/netty/handler/codec/http2/HpackDecoder;
            lload 1 /* max */
            invokevirtual io.netty.handler.codec.http2.HpackDecoder.setMaxHeaderTableSize:(J)V
         1: .line 87
            return
        end local 1 // long max
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;
            0    2     1   max  J
    Exceptions:
      throws io.netty.handler.codec.http2.Http2Exception
    MethodParameters:
      Name  Flags
      max   

  public long maxHeaderTableSize();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
         0: .line 91
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.hpackDecoder:Lio/netty/handler/codec/http2/HpackDecoder;
            invokevirtual io.netty.handler.codec.http2.HpackDecoder.getMaxHeaderTableSize:()J
            lreturn
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;

  public void maxHeaderListSize(long, long);
    descriptor: (JJ)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=3
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
        start local 1 // long max
        start local 3 // long goAwayMax
         0: .line 96
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.hpackDecoder:Lio/netty/handler/codec/http2/HpackDecoder;
            lload 1 /* max */
            lload 3 /* goAwayMax */
            invokevirtual io.netty.handler.codec.http2.HpackDecoder.setMaxHeaderListSize:(JJ)V
         1: .line 97
            return
        end local 3 // long goAwayMax
        end local 1 // long max
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    2     0       this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;
            0    2     1        max  J
            0    2     3  goAwayMax  J
    Exceptions:
      throws io.netty.handler.codec.http2.Http2Exception
    MethodParameters:
           Name  Flags
      max        
      goAwayMax  

  public long maxHeaderListSize();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
         0: .line 101
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.hpackDecoder:Lio/netty/handler/codec/http2/HpackDecoder;
            invokevirtual io.netty.handler.codec.http2.HpackDecoder.getMaxHeaderListSize:()J
            lreturn
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;

  public long maxHeaderListSizeGoAway();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
         0: .line 106
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.hpackDecoder:Lio/netty/handler/codec/http2/HpackDecoder;
            invokevirtual io.netty.handler.codec.http2.HpackDecoder.getMaxHeaderListSizeGoAway:()J
            lreturn
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;

  public io.netty.handler.codec.http2.Http2HeadersDecoder$Configuration configuration();
    descriptor: ()Lio/netty/handler/codec/http2/Http2HeadersDecoder$Configuration;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
         0: .line 111
            aload 0 /* this */
            areturn
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;

  public io.netty.handler.codec.http2.Http2Headers decodeHeaders(int, io.netty.buffer.ByteBuf);
    descriptor: (ILio/netty/buffer/ByteBuf;)Lio/netty/handler/codec/http2/Http2Headers;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=3
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
        start local 1 // int streamId
        start local 2 // io.netty.buffer.ByteBuf headerBlock
         0: .line 117
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.newHeaders:()Lio/netty/handler/codec/http2/Http2Headers;
            astore 3 /* headers */
        start local 3 // io.netty.handler.codec.http2.Http2Headers headers
         1: .line 118
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.hpackDecoder:Lio/netty/handler/codec/http2/HpackDecoder;
            iload 1 /* streamId */
            aload 2 /* headerBlock */
            aload 3 /* headers */
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.validateHeaders:Z
            invokevirtual io.netty.handler.codec.http2.HpackDecoder.decode:(ILio/netty/buffer/ByteBuf;Lio/netty/handler/codec/http2/Http2Headers;Z)V
         2: .line 119
            aload 0 /* this */
            ldc 0.2
            aload 3 /* headers */
            invokeinterface io.netty.handler.codec.http2.Http2Headers.size:()I
            i2f
            fmul
         3: .line 120
            ldc 0.8
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.headerArraySizeAccumulator:F
            fmul
            fadd
         4: .line 119
            putfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.headerArraySizeAccumulator:F
         5: .line 121
            aload 3 /* headers */
         6: areturn
        end local 3 // io.netty.handler.codec.http2.Http2Headers headers
         7: .line 122
      StackMap locals:
      StackMap stack: io.netty.handler.codec.http2.Http2Exception
            astore 3 /* e */
        start local 3 // io.netty.handler.codec.http2.Http2Exception e
         8: .line 123
            aload 3 /* e */
            athrow
        end local 3 // io.netty.handler.codec.http2.Http2Exception e
         9: .line 124
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 3 /* e */
        start local 3 // java.lang.Throwable e
        10: .line 128
            getstatic io.netty.handler.codec.http2.Http2Error.COMPRESSION_ERROR:Lio/netty/handler/codec/http2/Http2Error;
            aload 3 /* e */
            aload 3 /* e */
            invokevirtual java.lang.Throwable.getMessage:()Ljava/lang/String;
            iconst_0
            anewarray java.lang.Object
            invokestatic io.netty.handler.codec.http2.Http2Exception.connectionError:(Lio/netty/handler/codec/http2/Http2Error;Ljava/lang/Throwable;Ljava/lang/String;[Ljava/lang/Object;)Lio/netty/handler/codec/http2/Http2Exception;
            athrow
        end local 3 // java.lang.Throwable e
        end local 2 // io.netty.buffer.ByteBuf headerBlock
        end local 1 // int streamId
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   11     0         this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;
            0   11     1     streamId  I
            0   11     2  headerBlock  Lio/netty/buffer/ByteBuf;
            1    7     3      headers  Lio/netty/handler/codec/http2/Http2Headers;
            8    9     3            e  Lio/netty/handler/codec/http2/Http2Exception;
           10   11     3            e  Ljava/lang/Throwable;
      Exception table:
        from    to  target  type
           0     6       7  Class io.netty.handler.codec.http2.Http2Exception
           0     6       9  Class java.lang.Throwable
    Exceptions:
      throws io.netty.handler.codec.http2.Http2Exception
    MethodParameters:
             Name  Flags
      streamId     
      headerBlock  

  protected final int numberOfHeadersGuess();
    descriptor: ()I
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
         0: .line 137
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.headerArraySizeAccumulator:F
            f2i
            ireturn
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;

  protected final boolean validateHeaders();
    descriptor: ()Z
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
         0: .line 145
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.validateHeaders:Z
            ireturn
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;

  protected io.netty.handler.codec.http2.Http2Headers newHeaders();
    descriptor: ()Lio/netty/handler/codec/http2/Http2Headers;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
         0: .line 153
            new io.netty.handler.codec.http2.DefaultHttp2Headers
            dup
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.validateHeaders:Z
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder.headerArraySizeAccumulator:F
            f2i
            invokespecial io.netty.handler.codec.http2.DefaultHttp2Headers.<init>:(ZI)V
            areturn
        end local 0 // io.netty.handler.codec.http2.DefaultHttp2HeadersDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http2/DefaultHttp2HeadersDecoder;
}
SourceFile: "DefaultHttp2HeadersDecoder.java"
InnerClasses:
  public abstract Configuration = io.netty.handler.codec.http2.Http2HeadersDecoder$Configuration of io.netty.handler.codec.http2.Http2HeadersDecoder