https://openjdk.java.net/ 
public interface jdk.nashorn.api.tree.LineMap
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: jdk.nashorn.api.tree.LineMap
  super_class: java.lang.Object
{
  public abstract long getLineNumber(long);
    descriptor: (J)J
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      pos   

  public abstract long getColumnNumber(long);
    descriptor: (J)J
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      pos   
}
SourceFile: "LineMap.java"