8C的iserver中发布公交换乘服务服务,在加载文件型数据源时,加载不出来,提示:05-May-2019 11:58:16.346 SEVERE [catalina-exec-6728] com.sun.jersey.spi.container.ContainerResponse.mapMappableContainerException The RuntimeException could not be mapped to a response, re-throwing to the HTTP container
java.lang.NullPointerException
请问是什么原因?iserver是8CLinux的