在过去的几个月里，我一直在使用Docker和一个镜像，然后，我开始得到以下错误

[+] Building 3.3s (6/6) FINISHED                                                                                                                                                       
 => [internal] load build definition from Dockerfile                                                                                                                              0.0s
 => => transferring dockerfile: 37B                                                                                                                                               0.0s
 => [internal] load .dockerignore                                                                                                                                                 0.0s
 => => transferring context: 2B                                                                                                                                                   0.0s
 => resolve image config for docker.io/docker/dockerfile:experimental                                                                                                             1.9s
 => CACHED docker-image://docker.io/docker/dockerfile:experimental@sha256:600e5c62eedff338b3f7a0850beb7c05866e0ef27b2d2e8c02aa468e78496ff5                                        0.0s
 => [internal] load metadata for docker.io/library/maven:3.6.2-jdk-8                                                                                                              0.9s
 => ERROR [internal] load metadata for docker.io/library/java:8                                                                                                                   1.0s
------
 > [internal] load metadata for docker.io/library/java:8:
------
failed to solve with frontend dockerfile.v0: failed to solve with frontend gateway.v0: rpc error: code = Unknown desc = docker.io/library/java:8: not found

我在映像所在的容器上运行了以下命令

docker exec container_name java -version

我回来了

openjdk version "1.8.0_111"
OpenJDK Runtime Environment (build 1.8.0_111-8u111-b14-2~bpo8+1-b14)
OpenJDK 64-Bit Server VM (build 25.111-b14, mixed mode)

我不是docker方面的Maven，我不知道如何列出目录www.example.com中的内容docker.io/library/
Dockerfile调用java 8.
我所知道的就是它在工作，现在它停止工作了
谢谢你的任何帮助，和/或指针。