docs: public Set entrySet()
      {
          if (Tracing.isAnyTracingEnabled() && trace.isEntryEnabled())
              trace.entry(this, cclass,
                          "entrySet");
  
          EntrySet entrySet = new EntrySet();
  
          if (Tracing.isAnyTracingEnabled() && trace.isEntryEnabled())
              trace.exit(this, cclass,
                         "entrySet",
                         new Object[] { entrySet });
          return entrySet;
      }