https://openjdk.java.net/ 
public interface org.w3c.dom.DOMImplementationSource
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.w3c.dom.DOMImplementationSource
  super_class: java.lang.Object
{
  public abstract org.w3c.dom.DOMImplementation getDOMImplementation(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/w3c/dom/DOMImplementation;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
          Name  Flags
      features  

  public abstract org.w3c.dom.DOMImplementationList getDOMImplementationList(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/w3c/dom/DOMImplementationList;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
          Name  Flags
      features  
}
SourceFile: "DOMImplementationSource.java"