https://openjdk.java.net/ 
public interface sun.security.timestamp.Timestamper
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: sun.security.timestamp.Timestamper
  super_class: java.lang.Object
{
  public abstract sun.security.timestamp.TSResponse generateTimestamp(sun.security.timestamp.TSRequest);
    descriptor: (Lsun/security/timestamp/TSRequest;)Lsun/security/timestamp/TSResponse;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException
    MethodParameters:
         Name  Flags
      tsQuery  
}
SourceFile: "Timestamper.java"