https://openjdk.java.net/ 
public interface com.sun.net.ssl.HostnameVerifier
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.sun.net.ssl.HostnameVerifier
  super_class: java.lang.Object
{
  public abstract boolean verify(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
              Name  Flags
      urlHostname   
      certHostname  
}
SourceFile: "HostnameVerifier.java"
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated(since = "1.4")