authentication failed for https://repo.spring.io/libs-milestone/org/springframework/boot/spring-boot-starter-parent/3.1.0-M2/spring-boot-starter-parent-3.1.0-M2-site.xml, status: 401 Unauthorized

[patpatpat123]

🐞 Bug report (please don't include this emoji/text, just add your details)
Downloaded a fresh Spring Boot 3.1.0-M2 repo from Josh's second favorite place on the web.

it is just a "nothing-else-but-spring-boot-3.1.0-M2" app. We run maven site mvn site on it, and observe reproducible 100%

[INFO] Rendering site for default locale
Downloading from spring-libs-snapshot: https://repo.spring.io/libs-milestone/org/springframework/boot/spring-boot-starter-parent/3.1.0-M2/spring-boot-starter-parent-3.1.0-M2-site.xml
Downloading from spring-milestones: https://repo.spring.io/milestone/org/springframework/boot/spring-boot-starter-parent/3.1.0-M2/spring-boot-starter-parent-3.1.0-M2-site.xml
Downloading from central: https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter-parent/3.1.0-M2/spring-boot-starter-parent-3.1.0-M2-site.xml
authentication failed for https://repo.spring.io/libs-milestone/org/springframework/boot/spring-boot-starter-parent/3.1.0-M2/spring-boot-starter-parent-3.1.0-M2-site.xml, status: 401 Unauthorized

Would it be possible to help on this issue please? We run maven site as part of our pipeline

[mdeinum]

You shouldn't be using the https://repo.spring.io/libs-milestone in your build but https://repo.spring.io/milestone instead.

See also this announcement explaining that only /milestones and /snapshots will be anonymously available. All others are closed for internal use and all other dependencies should be resolved through Maven Central.

[scottfrederick]

When selecting a milestone version like Spring Boot 3.1.0-M2, Spring Initializr will add the Spring milestone repository to the build, with configuration like this in pom.xml:

    <repository>
      <id>spring-milestones</id>
      <name>Spring Milestones</name>
      <url>https://repo.spring.io/milestone</url>
      <snapshots>
        <enabled>false</enabled>
      </snapshots>
    </repository>

It appears you have that in your pom.xml based on this line in the output:

Downloading from spring-milestones: https://repo.spring.io/milestone/...

You also have this line in your output, which appears to be something that was added to the pom.xml after it was generated by Spring Initializr:

Downloading from spring-libs-snapshot: https://repo.spring.io/libs-milestone/...

As @mdeinum said, the https://repo.spring.io/libs-milestone can not be accessed without authentication, as it is not intended to be used externally. That's why you're getting the error authentication failed for https://repo.spring.io/libs-milestone....

[patpatpat123]

Thank you @scottfrederick, thanks you @mdeinum, indeed, working now. Sorry for the trouble