bytebuddy字节码增强关于type匹配疑问

[sjtu_chenchen]

public class MyAgent {

    public static void premain(String agentArgs, Instrumentation inst) {
        System.out.println("this is an perform monitor agent.");

        AgentBuilder.Transformer transformer = new AgentBuilder.Transformer() {
            @Override
            public DynamicType.Builder<?> transform(DynamicType.Builder<?> builder,
                                                    TypeDescription typeDescription,
                                                    ClassLoader classLoader) {
                return builder
                        .method(ElementMatchers.<MethodDescription>any()) // 拦截任意方法
                        .intercept(MethodDelegation.to(TimeInterceptor.class)); // 委托
            }
        };

        AgentBuilder.Listener listener = new AgentBuilder.Listener() {
            @Override
            public void onTransformation(TypeDescription typeDescription, ClassLoader classLoader, JavaModule module, DynamicType dynamicType) {}

            @Override
            public void onIgnored(TypeDescription typeDescription, ClassLoader classLoader, JavaModule module) { }

            @Override
            public void onError(String typeName, ClassLoader classLoader, JavaModule module, Throwable throwable) { }

            @Override
            public void onComplete(String typeName, ClassLoader classLoader, JavaModule module) { }
        };

        new AgentBuilder
                .Default()
                .type(ElementMatchers.nameStartsWith("com.example.demo")) // 指定需要拦截的类
                .transform(transformer)
                .with(listener)
                .installOn(inst);
    }
}

咨询下，上面代码是能增强的，但如果type不写完整包名，比如.type(ElementMatchers.nameStartsWith("com")) 为啥无法增强？