src/java.base/share/classes/java/lang/invoke/DirectMethodHandle.java

*** 689,700 ****
              } catch (ReflectiveOperationException ex) {
                  throw newInternalError(ex);
              }
          }
      }
- 
-     @Override
-     void customize() {
-         assert(form.customized == null);
-         // No need to customize DMHs.
-     }
  }
--- 689,694 ----