org.springframework.ui.freemarker.FreeMarkerConfigurationFactoryBean Template not found

Now I am trying to load the FreeMarker from the dependency jar and my config file is :

<bean id="freemarkerConfiguration" class="org.springframework.ui.freemarker.FreeMarkerConfigurationFactoryBean">
        <property name="templateLoaderPath" value="classpath*:/mailer_templates" />
</bean>

But I got this error :

java.io.FileNotFoundException: Template "test.ftl" not found.
        at freemarker.template.Configuration.getTemplate(Configuration.java:742)
        at freemarker.template.Configuration.getTemplate(Configuration.java:681)

I can`t move the template files from dependency jar to the current project dir.Is there any solutions ?

thanks in advance