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 interface io.netty.util.collection.ByteObjectMap<V> extends java.util.Map<java.lang.Byte, V>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: io.netty.util.collection.ByteObjectMap
  super_class: java.lang.Object
{
  public abstract V get();
    descriptor: (B)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (B)TV;
    MethodParameters:
      Name  Flags
      key   

  public abstract V put(byte, );
    descriptor: (BLjava/lang/Object;)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (BTV;)TV;
    MethodParameters:
       Name  Flags
      key    
      value  

  public abstract V remove();
    descriptor: (B)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (B)TV;
    MethodParameters:
      Name  Flags
      key   

  public abstract java.lang.Iterable<io.netty.util.collection.ByteObjectMap$PrimitiveEntry<V>> entries();
    descriptor: ()Ljava/lang/Iterable;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/lang/Iterable<Lio/netty/util/collection/ByteObjectMap$PrimitiveEntry<TV;>;>;

  public abstract boolean containsKey(byte);
    descriptor: (B)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      key   
}
Signature: <V:Ljava/lang/Object;>Ljava/lang/Object;Ljava/util/Map<Ljava/lang/Byte;TV;>;
SourceFile: "ByteObjectMap.java"
NestMembers:
  io.netty.util.collection.ByteObjectMap$PrimitiveEntry
InnerClasses:
  public abstract PrimitiveEntry = io.netty.util.collection.ByteObjectMap$PrimitiveEntry of io.netty.util.collection.ByteObjectMap