Maven dependencies are failing with a 501 error

Question

Recently Maven build jobs running in Jenkins are failing with the below exception saying that they couldn\'t pull dependencies from Maven Central

Answer 1

The error:

Failed to transfer file: http://repo.maven.apache.org/maven2/org/apache/maven/wagon/wagon-ssh/2.1/wagon-ssh-2.1.pom.

Return code is: 501 , ReasonPhrase:HTTPS Required.

Root cause analysis:

Maven central is expecting that the clients use https, but the client is making plain HTTP request only.

Therefore, the request for downloading the package named 'wagon-ssh-2.1.pom' had failed.

How to fix the problem?

Replace the URL "http://repo.maven.apache.org/maven2"

with "https://repo.maven.apache.org/maven2"

in pom.xml file or build.gradle file of the project.