https://openjdk.java.net/ 
public interface com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarDescription extends com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarDescription
  super_class: java.lang.Object
{
  public static final java.lang.String XML_SCHEMA;
    descriptor: Ljava/lang/String;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: "http://www.w3.org/2001/XMLSchema"

  public static final java.lang.String XML_DTD;
    descriptor: Ljava/lang/String;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: "http://www.w3.org/TR/REC-xml"

  public abstract java.lang.String getGrammarType();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "XMLGrammarDescription.java"