https://openjdk.java.net/ 
public interface javax.xml.bind.UnmarshallerHandler extends org.xml.sax.ContentHandler
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: javax.xml.bind.UnmarshallerHandler
  super_class: java.lang.Object
{
  public abstract java.lang.Object getResult();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws javax.xml.bind.JAXBException, java.lang.IllegalStateException
}
SourceFile: "UnmarshallerHandler.java"