Eclipse 2021-06中执行Maven部署返回401未授权错误如何解决

问题背景 #

我升级到Eclipse 2021-06 (4.20.0，Build id: 20210612-2011)后执行Maven部署出现异常，此前正常的Eclipse环境被CodeMix损坏。目前命令行可以正常完成部署，已经确认Eclipse会读取正确的Maven配置文件：

[DEBUG] Reading global settings from C:\Users\neilb\.m2\settings.xml
[DEBUG] Reading user settings from C:\Users\neilb\.m2\settings.xml

pom文件指向的仓库地址正确，settings.xml中的凭证信息也可以通过命令行部署成功验证，但在Eclipse内执行部署时返回401未授权错误，相关日志如下：

[DEBUG] Configuring mojo 'org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy' with basic configurator -->
[DEBUG]   (f) artifact = com.ziath.datapaq:scanner:jar:1.5.29
[DEBUG]   (f) attachedArtifacts = []
[DEBUG]   (s) localRepository =       id: local
      url: file:///C:/Users/neilb/.m2/repository/
   layout: default
snapshots: [enabled => true, update => always]
 releases: [enabled => true, update => always]
   blocked: false

[DEBUG]   (f) offline = false
[DEBUG]   (f) packaging = jar
[DEBUG]   (f) pomFile = C:\Users\neilb\Documents\GitHub\scanner\pom.xml
[DEBUG]   (f) project = MavenProject: com.ziath.datapaq:scanner:1.5.29 @ C:\Users\neilb\Documents\GitHub\scanner\pom.xml
[DEBUG]   (f) retryFailedDeploymentCount = 1
[DEBUG]   (f) skip = false
[DEBUG]   (f) updateReleaseInfo = false
[DEBUG] -- end configuration --
[DEBUG] Using connector AetherRepositoryConnector with priority 100.0 for http://10.9.8.246:8081/repository/lib-releases/ with username=admin, password=***
[INFO] Uploading to : http://10.9.8.246:8081/repository/lib-releases/com/ziath/datapaq/scanner/1.5.29/scanner-1.5.29.pom
[INFO] Uploading to : http://10.9.8.246:8081/repository/lib-releases/com/ziath/datapaq/scanner/1.5.29/scanner-1.5.29.jar
[INFO] Uploaded to : http://10.9.8.246:8081/repository/lib-releases/com/ziath/datapaq/scanner/1.5.29/scanner-1.5.29.pom (10 kB at 92 kB/s)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE

异常信息：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project scanner: Failed to deploy artifacts: Could not transfer artifact com.ziath.datapaq:scanner:jar:1.5.29 from/to releases (http://10.9.8.246:8081/repository/lib-releases/): Access denied to http://10.9.8.246:8081/repository/lib-releases/com/ziath/datapaq/scanner/1.5.29/scanner-1.5.29.jar. Error code 401, Unauthorized -> [Help 1]

解决方法 #

请按以下顺序修改配置排查问题：

• 切换Eclipse使用的Maven runtime：打开「窗口>首选项>Maven>安装」，取消勾选Eclipse自带的内嵌Maven，勾选你本地命令行使用的Maven版本，保存设置后重启Eclipse。
• 清理Eclipse安全存储的冗余凭证：打开「窗口>首选项>常规>安全>安全存储」，切换到「内容」标签，找到所有和Maven、你的私有仓库地址相关的凭证条目全部删除，避免Eclipse用缓存的错误凭证覆盖settings.xml中的配置。
• 检查Maven运行配置：右键项目选择「运行方式>运行配置」，找到你执行deploy用的Maven构建配置，切换到「参数」标签，确认没有额外的-Dusername、-Dpassword等参数覆盖settings.xml的凭证，同时确认「用户设置」路径指向你正在使用的正确settings.xml文件。
• 升级maven-deploy-plugin版本：你当前使用的2.7版本和Eclipse 2021-06的Aether连接器存在兼容性问题，可以在项目pom.xml的build/plugins节点下显式指定更高版本的插件：

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-deploy-plugin</artifactId>
  <version>3.0.0-M1</version>
</plugin>

• 清理本地仓库缓存：删除本地仓库路径下com/ziath/datapaq/scanner/1.5.29/目录，重新执行clean deploy即可。

内容的提问来源于stack exchange，提问作者Neil Benn