https://openjdk.java.net/ 
public interface com.sun.org.glassfish.external.statistics.CountStatistic extends com.sun.org.glassfish.external.statistics.Statistic
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.sun.org.glassfish.external.statistics.CountStatistic
  super_class: java.lang.Object
{
  public abstract long getCount();
    descriptor: ()J
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "CountStatistic.java"