https://openjdk.java.net/ 
public interface com.sun.xml.internal.ws.Closeable extends java.io.Closeable
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.sun.xml.internal.ws.Closeable
  super_class: java.lang.Object
{
  public abstract void close();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws javax.xml.ws.WebServiceException
}
SourceFile: "Closeable.java"