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.marshalling.CompatibleMarshallingDecoder extends io.netty.handler.codec.ReplayingDecoder<java.lang.Void>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder
  super_class: io.netty.handler.codec.ReplayingDecoder
{
  protected final io.netty.handler.codec.marshalling.UnmarshallerProvider provider;
    descriptor: Lio/netty/handler/codec/marshalling/UnmarshallerProvider;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

  protected final int maxObjectSize;
    descriptor: I
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

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

  public void <init>(io.netty.handler.codec.marshalling.UnmarshallerProvider, int);
    descriptor: (Lio/netty/handler/codec/marshalling/UnmarshallerProvider;I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder this
        start local 1 // io.netty.handler.codec.marshalling.UnmarshallerProvider provider
        start local 2 // int maxObjectSize
         0: .line 52
            aload 0 /* this */
            invokespecial io.netty.handler.codec.ReplayingDecoder.<init>:()V
         1: .line 53
            aload 0 /* this */
            aload 1 /* provider */
            putfield io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.provider:Lio/netty/handler/codec/marshalling/UnmarshallerProvider;
         2: .line 54
            aload 0 /* this */
            iload 2 /* maxObjectSize */
            putfield io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.maxObjectSize:I
         3: .line 55
            return
        end local 2 // int maxObjectSize
        end local 1 // io.netty.handler.codec.marshalling.UnmarshallerProvider provider
        end local 0 // io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    4     0           this  Lio/netty/handler/codec/marshalling/CompatibleMarshallingDecoder;
            0    4     1       provider  Lio/netty/handler/codec/marshalling/UnmarshallerProvider;
            0    4     2  maxObjectSize  I
    MethodParameters:
               Name  Flags
      provider       
      maxObjectSize  

  protected void decode(io.netty.channel.ChannelHandlerContext, io.netty.buffer.ByteBuf, java.util.List<java.lang.Object>);
    descriptor: (Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;Ljava/util/List;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=8, args_size=4
        start local 0 // io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder this
        start local 1 // io.netty.channel.ChannelHandlerContext ctx
        start local 2 // io.netty.buffer.ByteBuf buffer
        start local 3 // java.util.List out
         0: .line 59
            aload 0 /* this */
            getfield io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.discardingTooLongFrame:Z
            ifeq 4
         1: .line 60
            aload 2 /* buffer */
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.actualReadableBytes:()I
            invokevirtual io.netty.buffer.ByteBuf.skipBytes:(I)Lio/netty/buffer/ByteBuf;
            pop
         2: .line 61
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.checkpoint:()V
         3: .line 62
            return
         4: .line 65
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.provider:Lio/netty/handler/codec/marshalling/UnmarshallerProvider;
            aload 1 /* ctx */
            invokeinterface io.netty.handler.codec.marshalling.UnmarshallerProvider.getUnmarshaller:(Lio/netty/channel/ChannelHandlerContext;)Lorg/jboss/marshalling/Unmarshaller;
            astore 4 /* unmarshaller */
        start local 4 // org.jboss.marshalling.Unmarshaller unmarshaller
         5: .line 66
            new io.netty.handler.codec.marshalling.ChannelBufferByteInput
            dup
            aload 2 /* buffer */
            invokespecial io.netty.handler.codec.marshalling.ChannelBufferByteInput.<init>:(Lio/netty/buffer/ByteBuf;)V
            astore 5 /* input */
        start local 5 // org.jboss.marshalling.ByteInput input
         6: .line 67
            aload 0 /* this */
            getfield io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.maxObjectSize:I
            ldc 2147483647
            if_icmpeq 8
         7: .line 68
            new io.netty.handler.codec.marshalling.LimitingByteInput
            dup
            aload 5 /* input */
            aload 0 /* this */
            getfield io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.maxObjectSize:I
            i2l
            invokespecial io.netty.handler.codec.marshalling.LimitingByteInput.<init>:(Lorg/jboss/marshalling/ByteInput;J)V
            astore 5 /* input */
         8: .line 71
      StackMap locals: org.jboss.marshalling.Unmarshaller org.jboss.marshalling.ByteInput
      StackMap stack:
            aload 4 /* unmarshaller */
            aload 5 /* input */
            invokeinterface org.jboss.marshalling.Unmarshaller.start:(Lorg/jboss/marshalling/ByteInput;)V
         9: .line 72
            aload 4 /* unmarshaller */
            invokeinterface org.jboss.marshalling.Unmarshaller.readObject:()Ljava/lang/Object;
            astore 6 /* obj */
        start local 6 // java.lang.Object obj
        10: .line 73
            aload 4 /* unmarshaller */
            invokeinterface org.jboss.marshalling.Unmarshaller.finish:()V
        11: .line 74
            aload 3 /* out */
            aload 6 /* obj */
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        end local 6 // java.lang.Object obj
        12: .line 75
            goto 19
      StackMap locals:
      StackMap stack: io.netty.handler.codec.marshalling.LimitingByteInput$TooBigObjectException
        13: pop
        14: .line 76
            aload 0 /* this */
            iconst_1
            putfield io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.discardingTooLongFrame:Z
        15: .line 77
            new io.netty.handler.codec.TooLongFrameException
            dup
            invokespecial io.netty.handler.codec.TooLongFrameException.<init>:()V
            athrow
        16: .line 78
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 7
        17: .line 81
            aload 4 /* unmarshaller */
            invokeinterface org.jboss.marshalling.Unmarshaller.close:()V
        18: .line 82
            aload 7
            athrow
        19: .line 81
      StackMap locals:
      StackMap stack:
            aload 4 /* unmarshaller */
            invokeinterface org.jboss.marshalling.Unmarshaller.close:()V
        20: .line 83
            return
        end local 5 // org.jboss.marshalling.ByteInput input
        end local 4 // org.jboss.marshalling.Unmarshaller unmarshaller
        end local 3 // java.util.List out
        end local 2 // io.netty.buffer.ByteBuf buffer
        end local 1 // io.netty.channel.ChannelHandlerContext ctx
        end local 0 // io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   21     0          this  Lio/netty/handler/codec/marshalling/CompatibleMarshallingDecoder;
            0   21     1           ctx  Lio/netty/channel/ChannelHandlerContext;
            0   21     2        buffer  Lio/netty/buffer/ByteBuf;
            0   21     3           out  Ljava/util/List<Ljava/lang/Object;>;
            5   21     4  unmarshaller  Lorg/jboss/marshalling/Unmarshaller;
            6   21     5         input  Lorg/jboss/marshalling/ByteInput;
           10   12     6           obj  Ljava/lang/Object;
      Exception table:
        from    to  target  type
           8    12      13  Class io.netty.handler.codec.marshalling.LimitingByteInput$TooBigObjectException
           8    16      16  any
    Exceptions:
      throws java.lang.Exception
    Signature: (Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;Ljava/util/List<Ljava/lang/Object;>;)V
    MethodParameters:
        Name  Flags
      ctx     
      buffer  
      out     

  protected void decodeLast(io.netty.channel.ChannelHandlerContext, io.netty.buffer.ByteBuf, java.util.List<java.lang.Object>);
    descriptor: (Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;Ljava/util/List;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=4, args_size=4
        start local 0 // io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder this
        start local 1 // io.netty.channel.ChannelHandlerContext ctx
        start local 2 // io.netty.buffer.ByteBuf buffer
        start local 3 // java.util.List out
         0: .line 87
            aload 2 /* buffer */
            invokevirtual io.netty.buffer.ByteBuf.readableBytes:()I
            tableswitch { // 0 - 1
                    0: 1
                    1: 2
              default: 5
          }
         1: .line 89
      StackMap locals:
      StackMap stack:
            return
         2: .line 92
      StackMap locals:
      StackMap stack:
            aload 2 /* buffer */
            aload 2 /* buffer */
            invokevirtual io.netty.buffer.ByteBuf.readerIndex:()I
            invokevirtual io.netty.buffer.ByteBuf.getByte:(I)B
            bipush 121
            if_icmpne 5
         3: .line 93
            aload 2 /* buffer */
            iconst_1
            invokevirtual io.netty.buffer.ByteBuf.skipBytes:(I)Lio/netty/buffer/ByteBuf;
            pop
         4: .line 94
            return
         5: .line 98
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* ctx */
            aload 2 /* buffer */
            aload 3 /* out */
            invokevirtual io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder.decode:(Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;Ljava/util/List;)V
         6: .line 99
            return
        end local 3 // java.util.List out
        end local 2 // io.netty.buffer.ByteBuf buffer
        end local 1 // io.netty.channel.ChannelHandlerContext ctx
        end local 0 // io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    7     0    this  Lio/netty/handler/codec/marshalling/CompatibleMarshallingDecoder;
            0    7     1     ctx  Lio/netty/channel/ChannelHandlerContext;
            0    7     2  buffer  Lio/netty/buffer/ByteBuf;
            0    7     3     out  Ljava/util/List<Ljava/lang/Object;>;
    Exceptions:
      throws java.lang.Exception
    Signature: (Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;Ljava/util/List<Ljava/lang/Object;>;)V
    MethodParameters:
        Name  Flags
      ctx     
      buffer  
      out     

  public void exceptionCaught(io.netty.channel.ChannelHandlerContext, java.lang.Throwable);
    descriptor: (Lio/netty/channel/ChannelHandlerContext;Ljava/lang/Throwable;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder this
        start local 1 // io.netty.channel.ChannelHandlerContext ctx
        start local 2 // java.lang.Throwable cause
         0: .line 103
            aload 2 /* cause */
            instanceof io.netty.handler.codec.TooLongFrameException
            ifeq 3
         1: .line 104
            aload 1 /* ctx */
            invokeinterface io.netty.channel.ChannelHandlerContext.close:()Lio/netty/channel/ChannelFuture;
            pop
         2: .line 105
            goto 4
         3: .line 106
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* ctx */
            aload 2 /* cause */
            invokespecial io.netty.handler.codec.ReplayingDecoder.exceptionCaught:(Lio/netty/channel/ChannelHandlerContext;Ljava/lang/Throwable;)V
         4: .line 108
      StackMap locals:
      StackMap stack:
            return
        end local 2 // java.lang.Throwable cause
        end local 1 // io.netty.channel.ChannelHandlerContext ctx
        end local 0 // io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    5     0   this  Lio/netty/handler/codec/marshalling/CompatibleMarshallingDecoder;
            0    5     1    ctx  Lio/netty/channel/ChannelHandlerContext;
            0    5     2  cause  Ljava/lang/Throwable;
    Exceptions:
      throws java.lang.Exception
    MethodParameters:
       Name  Flags
      ctx    
      cause  
}
Signature: Lio/netty/handler/codec/ReplayingDecoder<Ljava/lang/Void;>;
SourceFile: "CompatibleMarshallingDecoder.java"
InnerClasses:
  final TooBigObjectException = io.netty.handler.codec.marshalling.LimitingByteInput$TooBigObjectException of io.netty.handler.codec.marshalling.LimitingByteInput