https://openjdk.java.net/ 
public interface com.sun.net.httpserver.HttpHandler
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.sun.net.httpserver.HttpHandler
  super_class: java.lang.Object
{
  public abstract void handle(com.sun.net.httpserver.HttpExchange);
    descriptor: (Lcom/sun/net/httpserver/HttpExchange;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException
    MethodParameters:
          Name  Flags
      exchange  
}
SourceFile: "HttpHandler.java"