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Where to find maven-metadata.xml in maven central?


Asked by Briar Roth on Dec 07, 2021 Maven



Let's say we've added some logging to the code and need to add log4j as a dependency. First, we need to know what the groupId, artifactId, and version are for log4j. The appropriate directory on Maven Central is called /maven2/log4j/log4j. In that directory is a file called maven-metadata.xml.
Keeping this in consideration,
The metadata file name is: maven-metadata-<repo-id>.xml in a local repository, for metatada from a repository with repo-id identifier. The following are generated from this model: Java sources with Reader and Writers for the Xpp3 XML parser, to read and write maven-metadata (-*).xml files
Accordingly, If you select a Maven metadata file (maven-metadata.xml) or a POM file (pom.xml) in the Tree Browser, Artifactory provides corresponding tabs allowing you to view details on the selected item. To configure Maven to resolve artifacts through Artifactory you need to modify the settings.xml. You can generate one automatically, or modify it manually.
Besides,
Whenever you run build job, maven first try to find dependency from local repository. If it is not there, then, by default, maven will trigger the download from this central repository location. To override this default location, you can can make changes to your settings.xml file to use one or more mirrors.
Moreover,
First, multiple projects can access same artifact so it reduces the storage need. Second, as dependency is downloaded only once, it reduces the network usage as well. Maven central repository is located at http://repo.maven.apache.org/maven2/.