https://openjdk.java.net/ 
public interface sun.misc.ObjectStreamClassValidator
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: sun.misc.ObjectStreamClassValidator
  super_class: java.lang.Object
{
  public abstract void validateDescriptor(java.io.ObjectStreamClass);
    descriptor: (Ljava/io/ObjectStreamClass;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
            Name  Flags
      descriptor  
}
SourceFile: "ObjectStreamClassValidator.java"