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

*** 1267,1274 ****
--- 1267,1283 ----
                  Long.formatUnsignedLong(val, shift, buf, offset, len);
              }
              public void formatUnsignedInt(int val, int shift, char[] buf, int offset, int len) {
                  Integer.formatUnsignedInt(val, shift, buf, offset, len);
              }
+             public Object getClassData(Class<?> klass) {
+                 return klass.classData();
+             }
+             public boolean casClassData(Class<?> klass, Object oldData, Object newData) {
+                 return klass.casClassData(oldData, newData);
+             }
+             public int getClassRedefinedCount(Class<?> klass) {
+                 return klass.classRedefinedCount();
+             }
          });
      }
  }