@Override
    public final void doTransform(@NonNull final ClassInfo classInfo) throws IOException, NotFoundException, CannotCompileException {
        // work-around ClassCircularityError:
        //      https://github.com/alibaba/transmittable-thread-local/issues/278
        //      https://github.com/alibaba/transmittable-thread-local/issues/234
        if (isClassAtPackageJavaUtil(classInfo.getClassName())) return;

        final CtClass clazz = classInfo.getCtClass();
        if (executorClassNames.contains(classInfo.getClassName())) {
            for (CtMethod method : clazz.getDeclaredMethods()) {
                updateSubmitMethodsOfExecutorClass_decorateToTtlWrapperAndSetAutoWrapperAttachment(method);
            }

            if (disableInheritableForThreadPool) updateConstructorDisableInheritable(clazz);

            classInfo.setModified();
        } else {
            if (clazz.isPrimitive() || clazz.isArray() || clazz.isInterface() || clazz.isAnnotation()) {
                return;
            }
            if (!clazz.subclassOf(clazz.getClassPool().get(THREAD_POOL_EXECUTOR_CLASS_NAME))) return;

            logger.info("Transforming class " + classInfo.getClassName());

            final boolean modified = updateBeforeAndAfterExecuteMethodOfExecutorSubclass(clazz);
            if (modified) classInfo.setModified();
        }
    }
@param executorClassNames the executor class names to be transformed
ttl-agent/src/main/java/com/alibaba/ttl3/agent/transformlet/helper/AbstractExecutorTtlTransformlet.java