maven编译下载文件失败

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问题描述

执行maven命令的时候报错，不能从中央仓库下载jar包回来，导致命令失败

$ mvn clean eclipse:clean eclipse:eclipse
....
Downloading: http://oss.sonatype.org/org/sonatype/oss/oss-parent/2/oss-parent-2.pom
178b downloaded  (oss-parent-2.pom)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = '81ffbd1712afe8cdf138b570c0fc9934742c33c1'; remote = '<html>
<head><title>301' - RETRYING
Downloading: http://oss.sonatype.org/org/sonatype/oss/oss-parent/2/oss-parent-2.pom
178b downloaded  (oss-parent-2.pom)
[WARNING] *** CHECKSUM FAILED - Checksum failed on download: local = '81ffbd1712afe8cdf138b570c0fc9934742c33c1'; remote = '<html>
<head><title>301' - IGNORING
[ERROR] An error occurred during dependency resolution of the following artifact:
    com.ning:compress-lzf:0.6.0
Caused by: Unable to get dependency information: Unable to read the metadata file for artifact 'com.ning:compress-lzf:jar': Cannot find parent: org.sonatype.oss:oss-parent for project: com.ning:compress-lzf:bundle:0.6.0 for project com.ning:compress-lzf:bundle:0.6.0
  com.ning:compress-lzf:jar:0.6.0

from the specified remote repositories:
  central (http://xxx.com/mvn/repository),
  snapshots (http://xxx.com/mvn/repository)

Path to dependency: 
	1)xxxx:xxx1:jar:2.0-SNAPSHOT
	2) xxx:xxx2:jar:1.13.6
...

原因分析
从错误提示可以看出，问题出在下载oss-parent-2.pom这个包失败，导致后面对com.ning:compress-lzf:jar的解析失败，进而整个build受影响失败。

原因是maven官方不再维护maven2，而maven2项目在构建过程中，有可能需要sonatype.org域名下的文件，这些文件已经被移除，导致构建失败。

除了pom文件以外，还有一些sonatype.org域名下的插件也被移除。

解决方案