I'm getting an unexpected 501 error code when building my maven project. The message says HTTPS is required but i haven't changed my settings.xml.
How can i check if something has changed in my configuration?
How can i get things to work?
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The reason for this is explained in Maven dependencies are failing with a 501 error
1) In order to upgrade your maven version you can use the following URL https://maven.apache.org/download.cgi; you should extract this file in your PC and then point the extracted file in your IDE.
2) Or... if you're using a non-updated IDE you can install a newer version and maven should be configured automatically in the proper way; In my case, i was using Netbeans 8.2 and now i moved to 11.1, which uses https and works smoothly
BabaNew
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You may need to update your maven version. Maven Central has made the switch to only use HTTPS. Check out this article. https://blog.sonatype.com/central-repository-moving-to-https
Jonathan Parker
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The switch happened yesterday 1/15. It is truly to prevent MITM attacks during the build phase. – Jonathan Parker Jan 16 '20 at 14:48
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1It is not necessary to update. For older Maven version you can force using HTTPS in the settings.xml as answered here https://stackoverflow.com/a/59784045/4807875. – Alexander Samoylov Jul 09 '20 at 12:46