src/jdk.jfr/share/classes/jdk/jfr/internal/EventClassBuilder.java

*** 68,78 ****
          buildFields();
          buildSetMethod();
          endClass();
          byte[] bytes = classWriter.toByteArray();
          ASMToolkit.logASM(fullClassName, bytes);
!         return SecuritySupport.defineClass(type.getInternalName(), bytes, Event.class.getClassLoader()).asSubclass(Event.class);
      }
  
      private void endClass() {
          classWriter.visitEnd();
      }
--- 68,78 ----
          buildFields();
          buildSetMethod();
          endClass();
          byte[] bytes = classWriter.toByteArray();
          ASMToolkit.logASM(fullClassName, bytes);
!         return SecuritySupport.defineClass(Event.class, bytes).asSubclass(Event.class);
      }
  
      private void endClass() {
          classWriter.visitEnd();
      }