core/org.openjdk.jmc.agent/src/main/java/org/openjdk/jmc/agent/jfrnext/impl/JFRNextClassVisitor.java

@@ -85,9 +85,9 @@
                 registerMethod.invoke(null,  generateEventClass);               
         }
 
         private Class<?> generateEventClass() throws Exception {
                 byte[] eventClass = JFRNextEventClassGenerator.generateEventClass(transformDescriptor);
-                return TypeUtils.getUnsafe().defineClass(transformDescriptor.getEventClassName(), eventClass, 0,
+                return TypeUtils.defineClass(transformDescriptor.getEventClassName(), eventClass, 0,
                                 eventClass.length, definingClassLoader, protectionDomain);
         }
 }