A good website that tracks reverse dependencies of Java Jar files [closed]

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Can anyone recommend me a site that tracks the metadata of Ja开发者_如何学Pythonr files including reverse-dependencies?

To let you know what a reverse-dependencies are; Reverse dependencies of a given-jar are the jars that use the given-jar. For example, plexus-utils is a dependency of maven-core. That makes maven-core a reverse-dependency of plexus-utils.

I know there are sites that tracks the dependencies of jars. But I need a site that tracks reverse-dependencies. Thanks.

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The closest site you'll find is probably one of the Maven repositories (such as http://mvnrepository.com/). An example of such a link in there is http://mvnrepository.com/artifact/xerces/xercesImpl/2.9.1, which shows you a list of some of the other artifacts that depend on xerces.

It wouldn't be a bad idea to build one dedicated to this task, but typically this is information that is hard to centralize. It is very similar to the Debian packages website or CPAN for Perl: because directories like that are central distribution points for many packages they can do a reasonable job of determining reverse dependencies, but given that there is no real official central distribution point for JAR files it is much harder to do.