src/java.base/share/classes/java/lang/ClassLoader.java

*** 48,57 ****
--- 48,59 ----
  import java.util.NoSuchElementException;
  import java.util.Vector;
  import java.util.Hashtable;
  import java.util.WeakHashMap;
  import java.util.concurrent.ConcurrentHashMap;
+ 
+ import jdk.internal.perf.PerfCounter;
  import sun.misc.Resource;
  import sun.misc.URLClassPath;
  import sun.reflect.CallerSensitive;
  import sun.reflect.Reflection;
  import sun.reflect.misc.ReflectUtil;
*** 421,433 ****
                      // to find the class.
                      long t1 = System.nanoTime();
                      c = findClass(name);
  
                      // this is the defining class loader; record the stats
!                     sun.misc.PerfCounter.getParentDelegationTime().addTime(t1 - t0);
!                     sun.misc.PerfCounter.getFindClassTime().addElapsedTimeFrom(t1);
!                     sun.misc.PerfCounter.getFindClasses().increment();
                  }
              }
              if (resolve) {
                  resolveClass(c);
              }
--- 423,435 ----
                      // to find the class.
                      long t1 = System.nanoTime();
                      c = findClass(name);
  
                      // this is the defining class loader; record the stats
!                     PerfCounter.getParentDelegationTime().addTime(t1 - t0);
!                     PerfCounter.getFindClassTime().addElapsedTimeFrom(t1);
!                     PerfCounter.getFindClasses().increment();
                  }
              }
              if (resolve) {
                  resolveClass(c);
              }