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.Http2ServerUpgradeCodec implements io.netty.handler.codec.http.HttpServerUpgradeHandler$UpgradeCodec
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.netty.handler.codec.http2.Http2ServerUpgradeCodec
  super_class: java.lang.Object
{
  private static final io.netty.util.internal.logging.InternalLogger logger;
    descriptor: Lio/netty/util/internal/logging/InternalLogger;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.util.List<java.lang.CharSequence> REQUIRED_UPGRADE_HEADERS;
    descriptor: Ljava/util/List;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Ljava/util/List<Ljava/lang/CharSequence;>;

  private static final io.netty.channel.ChannelHandler[] EMPTY_HANDLERS;
    descriptor: [Lio/netty/channel/ChannelHandler;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private final java.lang.String handlerName;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final io.netty.handler.codec.http2.Http2ConnectionHandler connectionHandler;
    descriptor: Lio/netty/handler/codec/http2/Http2ConnectionHandler;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final io.netty.channel.ChannelHandler[] handlers;
    descriptor: [Lio/netty/channel/ChannelHandler;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final io.netty.handler.codec.http2.Http2FrameReader frameReader;
    descriptor: Lio/netty/handler/codec/http2/Http2FrameReader;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private io.netty.handler.codec.http2.Http2Settings settings;
    descriptor: Lio/netty/handler/codec/http2/Http2Settings;
    flags: (0x0002) ACC_PRIVATE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 49
            ldc Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            invokestatic io.netty.util.internal.logging.InternalLoggerFactory.getInstance:(Ljava/lang/Class;)Lio/netty/util/internal/logging/InternalLogger;
            putstatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.logger:Lio/netty/util/internal/logging/InternalLogger;
         1: .line 51
            getstatic io.netty.handler.codec.http2.Http2CodecUtil.HTTP_UPGRADE_SETTINGS_HEADER:Ljava/lang/CharSequence;
            invokestatic java.util.Collections.singletonList:(Ljava/lang/Object;)Ljava/util/List;
         2: .line 50
            putstatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.REQUIRED_UPGRADE_HEADERS:Ljava/util/List;
         3: .line 52
            iconst_0
            anewarray io.netty.channel.ChannelHandler
            putstatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.EMPTY_HANDLERS:[Lio/netty/channel/ChannelHandler;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(io.netty.handler.codec.http2.Http2ConnectionHandler);
    descriptor: (Lio/netty/handler/codec/http2/Http2ConnectionHandler;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // io.netty.handler.codec.http2.Http2ConnectionHandler connectionHandler
         0: .line 68
            aload 0 /* this */
            aconst_null
            aload 1 /* connectionHandler */
            getstatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.EMPTY_HANDLERS:[Lio/netty/channel/ChannelHandler;
            invokespecial io.netty.handler.codec.http2.Http2ServerUpgradeCodec.<init>:(Ljava/lang/String;Lio/netty/handler/codec/http2/Http2ConnectionHandler;[Lio/netty/channel/ChannelHandler;)V
         1: .line 69
            return
        end local 1 // io.netty.handler.codec.http2.Http2ConnectionHandler connectionHandler
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    2     0               this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0    2     1  connectionHandler  Lio/netty/handler/codec/http2/Http2ConnectionHandler;
    MethodParameters:
                   Name  Flags
      connectionHandler  

  public void <init>(io.netty.handler.codec.http2.Http2MultiplexCodec);
    descriptor: (Lio/netty/handler/codec/http2/Http2MultiplexCodec;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // io.netty.handler.codec.http2.Http2MultiplexCodec http2Codec
         0: .line 78
            aload 0 /* this */
            aconst_null
            aload 1 /* http2Codec */
            getstatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.EMPTY_HANDLERS:[Lio/netty/channel/ChannelHandler;
            invokespecial io.netty.handler.codec.http2.Http2ServerUpgradeCodec.<init>:(Ljava/lang/String;Lio/netty/handler/codec/http2/Http2ConnectionHandler;[Lio/netty/channel/ChannelHandler;)V
         1: .line 79
            return
        end local 1 // io.netty.handler.codec.http2.Http2MultiplexCodec http2Codec
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    2     0        this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0    2     1  http2Codec  Lio/netty/handler/codec/http2/Http2MultiplexCodec;
    MethodParameters:
            Name  Flags
      http2Codec  

  public void <init>(java.lang.String, io.netty.handler.codec.http2.Http2ConnectionHandler);
    descriptor: (Ljava/lang/String;Lio/netty/handler/codec/http2/Http2ConnectionHandler;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // java.lang.String handlerName
        start local 2 // io.netty.handler.codec.http2.Http2ConnectionHandler connectionHandler
         0: .line 89
            aload 0 /* this */
            aload 1 /* handlerName */
            aload 2 /* connectionHandler */
            getstatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.EMPTY_HANDLERS:[Lio/netty/channel/ChannelHandler;
            invokespecial io.netty.handler.codec.http2.Http2ServerUpgradeCodec.<init>:(Ljava/lang/String;Lio/netty/handler/codec/http2/Http2ConnectionHandler;[Lio/netty/channel/ChannelHandler;)V
         1: .line 90
            return
        end local 2 // io.netty.handler.codec.http2.Http2ConnectionHandler connectionHandler
        end local 1 // java.lang.String handlerName
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    2     0               this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0    2     1        handlerName  Ljava/lang/String;
            0    2     2  connectionHandler  Lio/netty/handler/codec/http2/Http2ConnectionHandler;
    MethodParameters:
                   Name  Flags
      handlerName        
      connectionHandler  

  public void <init>(java.lang.String, io.netty.handler.codec.http2.Http2MultiplexCodec);
    descriptor: (Ljava/lang/String;Lio/netty/handler/codec/http2/Http2MultiplexCodec;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // java.lang.String handlerName
        start local 2 // io.netty.handler.codec.http2.Http2MultiplexCodec http2Codec
         0: .line 99
            aload 0 /* this */
            aload 1 /* handlerName */
            aload 2 /* http2Codec */
            getstatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.EMPTY_HANDLERS:[Lio/netty/channel/ChannelHandler;
            invokespecial io.netty.handler.codec.http2.Http2ServerUpgradeCodec.<init>:(Ljava/lang/String;Lio/netty/handler/codec/http2/Http2ConnectionHandler;[Lio/netty/channel/ChannelHandler;)V
         1: .line 100
            return
        end local 2 // io.netty.handler.codec.http2.Http2MultiplexCodec http2Codec
        end local 1 // java.lang.String handlerName
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    2     0         this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0    2     1  handlerName  Ljava/lang/String;
            0    2     2   http2Codec  Lio/netty/handler/codec/http2/Http2MultiplexCodec;
    MethodParameters:
             Name  Flags
      handlerName  
      http2Codec   

  public void <init>(io.netty.handler.codec.http2.Http2FrameCodec, io.netty.channel.ChannelHandler[]);
    descriptor: (Lio/netty/handler/codec/http2/Http2FrameCodec;[Lio/netty/channel/ChannelHandler;)V
    flags: (0x0081) ACC_PUBLIC, ACC_VARARGS
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // io.netty.handler.codec.http2.Http2FrameCodec http2Codec
        start local 2 // io.netty.channel.ChannelHandler[] handlers
         0: .line 110
            aload 0 /* this */
            aconst_null
            aload 1 /* http2Codec */
            aload 2 /* handlers */
            invokespecial io.netty.handler.codec.http2.Http2ServerUpgradeCodec.<init>:(Ljava/lang/String;Lio/netty/handler/codec/http2/Http2ConnectionHandler;[Lio/netty/channel/ChannelHandler;)V
         1: .line 111
            return
        end local 2 // io.netty.channel.ChannelHandler[] handlers
        end local 1 // io.netty.handler.codec.http2.Http2FrameCodec http2Codec
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    2     0        this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0    2     1  http2Codec  Lio/netty/handler/codec/http2/Http2FrameCodec;
            0    2     2    handlers  [Lio/netty/channel/ChannelHandler;
    MethodParameters:
            Name  Flags
      http2Codec  
      handlers    

  private void <init>(java.lang.String, io.netty.handler.codec.http2.Http2ConnectionHandler, io.netty.channel.ChannelHandler[]);
    descriptor: (Ljava/lang/String;Lio/netty/handler/codec/http2/Http2ConnectionHandler;[Lio/netty/channel/ChannelHandler;)V
    flags: (0x0082) ACC_PRIVATE, ACC_VARARGS
    Code:
      stack=3, locals=4, args_size=4
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // java.lang.String handlerName
        start local 2 // io.netty.handler.codec.http2.Http2ConnectionHandler connectionHandler
        start local 3 // io.netty.channel.ChannelHandler[] handlers
         0: .line 113
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 115
            aload 0 /* this */
            aload 1 /* handlerName */
            putfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.handlerName:Ljava/lang/String;
         2: .line 116
            aload 0 /* this */
            aload 2 /* connectionHandler */
            putfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.connectionHandler:Lio/netty/handler/codec/http2/Http2ConnectionHandler;
         3: .line 117
            aload 0 /* this */
            aload 3 /* handlers */
            putfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.handlers:[Lio/netty/channel/ChannelHandler;
         4: .line 118
            aload 0 /* this */
            new io.netty.handler.codec.http2.DefaultHttp2FrameReader
            dup
            invokespecial io.netty.handler.codec.http2.DefaultHttp2FrameReader.<init>:()V
            putfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.frameReader:Lio/netty/handler/codec/http2/Http2FrameReader;
         5: .line 119
            return
        end local 3 // io.netty.channel.ChannelHandler[] handlers
        end local 2 // io.netty.handler.codec.http2.Http2ConnectionHandler connectionHandler
        end local 1 // java.lang.String handlerName
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    6     0               this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0    6     1        handlerName  Ljava/lang/String;
            0    6     2  connectionHandler  Lio/netty/handler/codec/http2/Http2ConnectionHandler;
            0    6     3           handlers  [Lio/netty/channel/ChannelHandler;
    MethodParameters:
                   Name  Flags
      handlerName        
      connectionHandler  
      handlers           

  public java.util.Collection<java.lang.CharSequence> requiredUpgradeHeaders();
    descriptor: ()Ljava/util/Collection;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
         0: .line 123
            getstatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.REQUIRED_UPGRADE_HEADERS:Ljava/util/List;
            areturn
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
    Signature: ()Ljava/util/Collection<Ljava/lang/CharSequence;>;

  public boolean prepareUpgradeResponse(io.netty.channel.ChannelHandlerContext, io.netty.handler.codec.http.FullHttpRequest, io.netty.handler.codec.http.HttpHeaders);
    descriptor: (Lio/netty/channel/ChannelHandlerContext;Lio/netty/handler/codec/http/FullHttpRequest;Lio/netty/handler/codec/http/HttpHeaders;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=4
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // io.netty.channel.ChannelHandlerContext ctx
        start local 2 // io.netty.handler.codec.http.FullHttpRequest upgradeRequest
        start local 3 // io.netty.handler.codec.http.HttpHeaders headers
         0: .line 132
            aload 2 /* upgradeRequest */
            invokeinterface io.netty.handler.codec.http.FullHttpRequest.headers:()Lio/netty/handler/codec/http/HttpHeaders;
            getstatic io.netty.handler.codec.http2.Http2CodecUtil.HTTP_UPGRADE_SETTINGS_HEADER:Ljava/lang/CharSequence;
            invokevirtual io.netty.handler.codec.http.HttpHeaders.getAll:(Ljava/lang/CharSequence;)Ljava/util/List;
            astore 4 /* upgradeHeaders */
        start local 4 // java.util.List upgradeHeaders
         1: .line 133
            aload 4 /* upgradeHeaders */
            invokeinterface java.util.List.isEmpty:()Z
            ifne 2
            aload 4 /* upgradeHeaders */
            invokeinterface java.util.List.size:()I
            iconst_1
            if_icmple 5
         2: .line 134
      StackMap locals: java.util.List
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "There must be 1 and only 1 "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
         3: .line 135
            getstatic io.netty.handler.codec.http2.Http2CodecUtil.HTTP_UPGRADE_SETTINGS_HEADER:Ljava/lang/CharSequence;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            ldc " header."
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
         4: .line 134
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 137
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 0 /* this */
            aload 1 /* ctx */
            aload 4 /* upgradeHeaders */
            iconst_0
            invokeinterface java.util.List.get:(I)Ljava/lang/Object;
            checkcast java.lang.CharSequence
            invokevirtual io.netty.handler.codec.http2.Http2ServerUpgradeCodec.decodeSettingsHeader:(Lio/netty/channel/ChannelHandlerContext;Ljava/lang/CharSequence;)Lio/netty/handler/codec/http2/Http2Settings;
            putfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.settings:Lio/netty/handler/codec/http2/Http2Settings;
         6: .line 139
            iconst_1
            ireturn
        end local 4 // java.util.List upgradeHeaders
         7: .line 140
      StackMap locals: io.netty.handler.codec.http2.Http2ServerUpgradeCodec io.netty.channel.ChannelHandlerContext io.netty.handler.codec.http.FullHttpRequest io.netty.handler.codec.http.HttpHeaders
      StackMap stack: java.lang.Throwable
            astore 4 /* cause */
        start local 4 // java.lang.Throwable cause
         8: .line 141
            getstatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.logger:Lio/netty/util/internal/logging/InternalLogger;
            ldc "Error during upgrade to HTTP/2"
            aload 4 /* cause */
            invokeinterface io.netty.util.internal.logging.InternalLogger.info:(Ljava/lang/String;Ljava/lang/Throwable;)V
         9: .line 142
            iconst_0
            ireturn
        end local 4 // java.lang.Throwable cause
        end local 3 // io.netty.handler.codec.http.HttpHeaders headers
        end local 2 // io.netty.handler.codec.http.FullHttpRequest upgradeRequest
        end local 1 // io.netty.channel.ChannelHandlerContext ctx
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0   10     0            this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0   10     1             ctx  Lio/netty/channel/ChannelHandlerContext;
            0   10     2  upgradeRequest  Lio/netty/handler/codec/http/FullHttpRequest;
            0   10     3         headers  Lio/netty/handler/codec/http/HttpHeaders;
            1    7     4  upgradeHeaders  Ljava/util/List<Ljava/lang/String;>;
            8   10     4           cause  Ljava/lang/Throwable;
      Exception table:
        from    to  target  type
           0     6       7  Class java.lang.Throwable
    MethodParameters:
                Name  Flags
      ctx             
      upgradeRequest  
      headers         

  public void upgradeTo(io.netty.channel.ChannelHandlerContext, io.netty.handler.codec.http.FullHttpRequest);
    descriptor: (Lio/netty/channel/ChannelHandlerContext;Lio/netty/handler/codec/http/FullHttpRequest;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=3
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // io.netty.channel.ChannelHandlerContext ctx
        start local 2 // io.netty.handler.codec.http.FullHttpRequest upgradeRequest
         0: .line 150
            aload 1 /* ctx */
            invokeinterface io.netty.channel.ChannelHandlerContext.pipeline:()Lio/netty/channel/ChannelPipeline;
            aload 1 /* ctx */
            invokeinterface io.netty.channel.ChannelHandlerContext.name:()Ljava/lang/String;
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.handlerName:Ljava/lang/String;
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.connectionHandler:Lio/netty/handler/codec/http2/Http2ConnectionHandler;
            invokeinterface io.netty.channel.ChannelPipeline.addAfter:(Ljava/lang/String;Ljava/lang/String;Lio/netty/channel/ChannelHandler;)Lio/netty/channel/ChannelPipeline;
            pop
         1: .line 151
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.connectionHandler:Lio/netty/handler/codec/http2/Http2ConnectionHandler;
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.settings:Lio/netty/handler/codec/http2/Http2Settings;
            invokevirtual io.netty.handler.codec.http2.Http2ConnectionHandler.onHttpServerUpgrade:(Lio/netty/handler/codec/http2/Http2Settings;)V
         2: .line 153
            goto 7
      StackMap locals:
      StackMap stack: io.netty.handler.codec.http2.Http2Exception
         3: astore 3 /* e */
        start local 3 // io.netty.handler.codec.http2.Http2Exception e
         4: .line 154
            aload 1 /* ctx */
            aload 3 /* e */
            invokeinterface io.netty.channel.ChannelHandlerContext.fireExceptionCaught:(Ljava/lang/Throwable;)Lio/netty/channel/ChannelHandlerContext;
            pop
         5: .line 155
            aload 1 /* ctx */
            invokeinterface io.netty.channel.ChannelHandlerContext.close:()Lio/netty/channel/ChannelFuture;
            pop
         6: .line 156
            return
        end local 3 // io.netty.handler.codec.http2.Http2Exception e
         7: .line 159
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.handlers:[Lio/netty/channel/ChannelHandler;
            ifnull 14
         8: .line 160
            aload 1 /* ctx */
            invokeinterface io.netty.channel.ChannelHandlerContext.pipeline:()Lio/netty/channel/ChannelPipeline;
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.connectionHandler:Lio/netty/handler/codec/http2/Http2ConnectionHandler;
            invokeinterface io.netty.channel.ChannelPipeline.context:(Lio/netty/channel/ChannelHandler;)Lio/netty/channel/ChannelHandlerContext;
            invokeinterface io.netty.channel.ChannelHandlerContext.name:()Ljava/lang/String;
            astore 3 /* name */
        start local 3 // java.lang.String name
         9: .line 161
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.handlers:[Lio/netty/channel/ChannelHandler;
            arraylength
            iconst_1
            isub
            istore 4 /* i */
        start local 4 // int i
        10: goto 13
        11: .line 162
      StackMap locals: java.lang.String int
      StackMap stack:
            aload 1 /* ctx */
            invokeinterface io.netty.channel.ChannelHandlerContext.pipeline:()Lio/netty/channel/ChannelPipeline;
            aload 3 /* name */
            aconst_null
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.handlers:[Lio/netty/channel/ChannelHandler;
            iload 4 /* i */
            aaload
            invokeinterface io.netty.channel.ChannelPipeline.addAfter:(Ljava/lang/String;Ljava/lang/String;Lio/netty/channel/ChannelHandler;)Lio/netty/channel/ChannelPipeline;
            pop
        12: .line 161
            iinc 4 /* i */ -1
      StackMap locals:
      StackMap stack:
        13: iload 4 /* i */
            ifge 11
        end local 4 // int i
        end local 3 // java.lang.String name
        14: .line 165
      StackMap locals:
      StackMap stack:
            return
        end local 2 // io.netty.handler.codec.http.FullHttpRequest upgradeRequest
        end local 1 // io.netty.channel.ChannelHandlerContext ctx
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0   15     0            this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0   15     1             ctx  Lio/netty/channel/ChannelHandlerContext;
            0   15     2  upgradeRequest  Lio/netty/handler/codec/http/FullHttpRequest;
            4    7     3               e  Lio/netty/handler/codec/http2/Http2Exception;
            9   14     3            name  Ljava/lang/String;
           10   14     4               i  I
      Exception table:
        from    to  target  type
           0     2       3  Class io.netty.handler.codec.http2.Http2Exception
    MethodParameters:
                Name  Flags
      ctx             final
      upgradeRequest  

  private io.netty.handler.codec.http2.Http2Settings decodeSettingsHeader(io.netty.channel.ChannelHandlerContext, java.lang.CharSequence);
    descriptor: (Lio/netty/channel/ChannelHandlerContext;Ljava/lang/CharSequence;)Lio/netty/handler/codec/http2/Http2Settings;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=8, args_size=3
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // io.netty.channel.ChannelHandlerContext ctx
        start local 2 // java.lang.CharSequence settingsHeader
         0: .line 172
            aload 1 /* ctx */
            invokeinterface io.netty.channel.ChannelHandlerContext.alloc:()Lio/netty/buffer/ByteBufAllocator;
            aload 2 /* settingsHeader */
            invokestatic java.nio.CharBuffer.wrap:(Ljava/lang/CharSequence;)Ljava/nio/CharBuffer;
            getstatic io.netty.util.CharsetUtil.UTF_8:Ljava/nio/charset/Charset;
            invokestatic io.netty.buffer.ByteBufUtil.encodeString:(Lio/netty/buffer/ByteBufAllocator;Ljava/nio/CharBuffer;Ljava/nio/charset/Charset;)Lio/netty/buffer/ByteBuf;
            astore 3 /* header */
        start local 3 // io.netty.buffer.ByteBuf header
         1: .line 175
            aload 3 /* header */
            getstatic io.netty.handler.codec.base64.Base64Dialect.URL_SAFE:Lio/netty/handler/codec/base64/Base64Dialect;
            invokestatic io.netty.handler.codec.base64.Base64.decode:(Lio/netty/buffer/ByteBuf;Lio/netty/handler/codec/base64/Base64Dialect;)Lio/netty/buffer/ByteBuf;
            astore 4 /* payload */
        start local 4 // io.netty.buffer.ByteBuf payload
         2: .line 178
            aload 1 /* ctx */
            aload 4 /* payload */
            invokestatic io.netty.handler.codec.http2.Http2ServerUpgradeCodec.createSettingsFrame:(Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;)Lio/netty/buffer/ByteBuf;
            astore 5 /* frame */
        start local 5 // io.netty.buffer.ByteBuf frame
         3: .line 181
            aload 0 /* this */
            aload 1 /* ctx */
            aload 5 /* frame */
            invokevirtual io.netty.handler.codec.http2.Http2ServerUpgradeCodec.decodeSettings:(Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;)Lio/netty/handler/codec/http2/Http2Settings;
            astore 7
         4: .line 183
            aload 3 /* header */
            invokevirtual io.netty.buffer.ByteBuf.release:()Z
            pop
         5: .line 181
            aload 7
            areturn
        end local 5 // io.netty.buffer.ByteBuf frame
        end local 4 // io.netty.buffer.ByteBuf payload
         6: .line 182
      StackMap locals: io.netty.handler.codec.http2.Http2ServerUpgradeCodec io.netty.channel.ChannelHandlerContext java.lang.CharSequence io.netty.buffer.ByteBuf
      StackMap stack: java.lang.Throwable
            astore 6
         7: .line 183
            aload 3 /* header */
            invokevirtual io.netty.buffer.ByteBuf.release:()Z
            pop
         8: .line 184
            aload 6
            athrow
        end local 3 // io.netty.buffer.ByteBuf header
        end local 2 // java.lang.CharSequence settingsHeader
        end local 1 // io.netty.channel.ChannelHandlerContext ctx
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    9     0            this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0    9     1             ctx  Lio/netty/channel/ChannelHandlerContext;
            0    9     2  settingsHeader  Ljava/lang/CharSequence;
            1    9     3          header  Lio/netty/buffer/ByteBuf;
            2    6     4         payload  Lio/netty/buffer/ByteBuf;
            3    6     5           frame  Lio/netty/buffer/ByteBuf;
      Exception table:
        from    to  target  type
           1     4       6  any
    Exceptions:
      throws io.netty.handler.codec.http2.Http2Exception
    MethodParameters:
                Name  Flags
      ctx             
      settingsHeader  

  private io.netty.handler.codec.http2.Http2Settings decodeSettings(io.netty.channel.ChannelHandlerContext, io.netty.buffer.ByteBuf);
    descriptor: (Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;)Lio/netty/handler/codec/http2/Http2Settings;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=7, locals=6, args_size=3
        start local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
        start local 1 // io.netty.channel.ChannelHandlerContext ctx
        start local 2 // io.netty.buffer.ByteBuf frame
         0: .line 192
            new io.netty.handler.codec.http2.Http2Settings
            dup
            invokespecial io.netty.handler.codec.http2.Http2Settings.<init>:()V
            astore 3 /* decodedSettings */
        start local 3 // io.netty.handler.codec.http2.Http2Settings decodedSettings
         1: .line 193
            aload 0 /* this */
            getfield io.netty.handler.codec.http2.Http2ServerUpgradeCodec.frameReader:Lio/netty/handler/codec/http2/Http2FrameReader;
            aload 1 /* ctx */
            aload 2 /* frame */
            new io.netty.handler.codec.http2.Http2ServerUpgradeCodec$1
            dup
            aload 0 /* this */
            aload 3 /* decodedSettings */
            invokespecial io.netty.handler.codec.http2.Http2ServerUpgradeCodec$1.<init>:(Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;Lio/netty/handler/codec/http2/Http2Settings;)V
            invokeinterface io.netty.handler.codec.http2.Http2FrameReader.readFrame:(Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;Lio/netty/handler/codec/http2/Http2FrameListener;)V
         2: .line 199
            aload 3 /* decodedSettings */
            astore 5
         3: .line 201
            aload 2 /* frame */
            invokevirtual io.netty.buffer.ByteBuf.release:()Z
            pop
         4: .line 199
            aload 5
            areturn
        end local 3 // io.netty.handler.codec.http2.Http2Settings decodedSettings
         5: .line 200
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 4
         6: .line 201
            aload 2 /* frame */
            invokevirtual io.netty.buffer.ByteBuf.release:()Z
            pop
         7: .line 202
            aload 4
            athrow
        end local 2 // io.netty.buffer.ByteBuf frame
        end local 1 // io.netty.channel.ChannelHandlerContext ctx
        end local 0 // io.netty.handler.codec.http2.Http2ServerUpgradeCodec this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    8     0             this  Lio/netty/handler/codec/http2/Http2ServerUpgradeCodec;
            0    8     1              ctx  Lio/netty/channel/ChannelHandlerContext;
            0    8     2            frame  Lio/netty/buffer/ByteBuf;
            1    5     3  decodedSettings  Lio/netty/handler/codec/http2/Http2Settings;
      Exception table:
        from    to  target  type
           0     3       5  any
    Exceptions:
      throws io.netty.handler.codec.http2.Http2Exception
    MethodParameters:
       Name  Flags
      ctx    
      frame  

  private static io.netty.buffer.ByteBuf createSettingsFrame(io.netty.channel.ChannelHandlerContext, io.netty.buffer.ByteBuf);
    descriptor: (Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;)Lio/netty/buffer/ByteBuf;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // io.netty.channel.ChannelHandlerContext ctx
        start local 1 // io.netty.buffer.ByteBuf payload
         0: .line 209
            aload 0 /* ctx */
            invokeinterface io.netty.channel.ChannelHandlerContext.alloc:()Lio/netty/buffer/ByteBufAllocator;
            bipush 9
            aload 1 /* payload */
            invokevirtual io.netty.buffer.ByteBuf.readableBytes:()I
            iadd
            invokeinterface io.netty.buffer.ByteBufAllocator.buffer:(I)Lio/netty/buffer/ByteBuf;
            astore 2 /* frame */
        start local 2 // io.netty.buffer.ByteBuf frame
         1: .line 210
            aload 2 /* frame */
            aload 1 /* payload */
            invokevirtual io.netty.buffer.ByteBuf.readableBytes:()I
            iconst_4
            new io.netty.handler.codec.http2.Http2Flags
            dup
            invokespecial io.netty.handler.codec.http2.Http2Flags.<init>:()V
            iconst_0
            invokestatic io.netty.handler.codec.http2.Http2CodecUtil.writeFrameHeader:(Lio/netty/buffer/ByteBuf;IBLio/netty/handler/codec/http2/Http2Flags;I)V
         2: .line 211
            aload 2 /* frame */
            aload 1 /* payload */
            invokevirtual io.netty.buffer.ByteBuf.writeBytes:(Lio/netty/buffer/ByteBuf;)Lio/netty/buffer/ByteBuf;
            pop
         3: .line 212
            aload 1 /* payload */
            invokevirtual io.netty.buffer.ByteBuf.release:()Z
            pop
         4: .line 213
            aload 2 /* frame */
            areturn
        end local 2 // io.netty.buffer.ByteBuf frame
        end local 1 // io.netty.buffer.ByteBuf payload
        end local 0 // io.netty.channel.ChannelHandlerContext ctx
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    5     0      ctx  Lio/netty/channel/ChannelHandlerContext;
            0    5     1  payload  Lio/netty/buffer/ByteBuf;
            1    5     2    frame  Lio/netty/buffer/ByteBuf;
    MethodParameters:
         Name  Flags
      ctx      
      payload  
}
SourceFile: "Http2ServerUpgradeCodec.java"
NestMembers:
  io.netty.handler.codec.http2.Http2ServerUpgradeCodec$1
InnerClasses:
  public abstract UpgradeCodec = io.netty.handler.codec.http.HttpServerUpgradeHandler$UpgradeCodec of io.netty.handler.codec.http.HttpServerUpgradeHandler
  io.netty.handler.codec.http2.Http2ServerUpgradeCodec$1