https://openjdk.java.net/ 
public interface javax.xml.ws.Response<T> extends java.util.concurrent.Future<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: javax.xml.ws.Response
  super_class: java.lang.Object
{
  public abstract java.util.Map<java.lang.String, java.lang.Object> getContext();
    descriptor: ()Ljava/util/Map;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;Ljava/util/concurrent/Future<TT;>;
SourceFile: "Response.java"