!7 lib 1400554 // javassist import javassist.ClassPool; import javassist.CtClass; p { ClassPool pool = ClassPool.getDefault(); CtClass cc = pool.makeClass("User123"); //Class c = cc.toClass(); byte[] bytes = cc.toBytecode(); var cl = new InMemoryClassLoader(myClassLoader()); Class c = cl.defineAClass("User123", bytes); print(c); }