http://security.ubuntu.com/ubuntu xenial-security/main 404 未找到

Question

我尝试安装 openjdk-8-jre，但找不到所有必需的软件包。我该怎么办？

sudo apt-get install openjdk-8-jre

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  openjdk-8-jre-headless
Suggested packages:
  icedtea-8-plugin openjdk-8-jre-jamvm libnss-mdns fonts-ipafont-gothic
  fonts-ipafont-mincho ttf-wqy-microhei | ttf-wqy-zenhei fonts-indic
The following NEW packages will be installed:
  openjdk-8-jre openjdk-8-jre-headless
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 27,0 MB of archives.
After this operation, 99,7 MB of additional disk space will be used.
Do you want to continue? [Y/n] 
Err:1 http://security.ubuntu.com/ubuntu xenial-security/main amd64 openjdk-8-jre-headless amd64 8u131-b11-0ubuntu1.16.04.2
  404  Not Found
...

还有一些链接找不到，但我无法发布，因为我是新用户