https://openjdk.java.net/ 
interface com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorHelper
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorHelper
  super_class: java.lang.Object
{
  public abstract void validate(javax.xml.transform.Source, javax.xml.transform.Result);
    descriptor: (Ljavax/xml/transform/Source;Ljavax/xml/transform/Result;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws org.xml.sax.SAXException, java.io.IOException
    MethodParameters:
        Name  Flags
      source  
      result  
}
SourceFile: "ValidatorHelper.java"