https://openjdk.java.net/ 
public interface javax.crypto.interfaces.DHKey
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: javax.crypto.interfaces.DHKey
  super_class: java.lang.Object
{
  public abstract javax.crypto.spec.DHParameterSpec getParams();
    descriptor: ()Ljavax/crypto/spec/DHParameterSpec;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "DHKey.java"