https://openjdk.java.net/ 
public interface com.sun.org.glassfish.external.statistics.Stats
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.sun.org.glassfish.external.statistics.Stats
  super_class: java.lang.Object
{
  public abstract com.sun.org.glassfish.external.statistics.Statistic getStatistic(java.lang.String);
    descriptor: (Ljava/lang/String;)Lcom/sun/org/glassfish/external/statistics/Statistic;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
               Name  Flags
      statisticName  

  public abstract java.lang.String[] getStatisticNames();
    descriptor: ()[Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract com.sun.org.glassfish.external.statistics.Statistic[] getStatistics();
    descriptor: ()[Lcom/sun/org/glassfish/external/statistics/Statistic;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "Stats.java"