Question

Say i am looking to include some guava libraries to my project. I am told that this is a proper way to ask Maven to get it for me:

<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>13.0.1</version>
</dependency>

Now, this is all great, assuming Maven repo i am pointing to actually has this code.

Is it possible to know what repo of many out there has particular binary for you to download? Put differently, assuming the repo you point to does not have what you need, where should you point to get it?

Let me elaborate. My pom currently lists the following repo:

<repository>
    <id>JBOSS_NEXUS</id>
    <url>http://repository.jboss.org/nexus/content/groups/public</url>
</repository>

Unless my eyes are fooling me, guava libraries are not present on that server (in this version)

Answer 1

Maven has no way to know what Maven repositories are out there in the world. It can only see the repositories you declare.

Unless you’ve worked extra hard, you always have the Maven Central repository, and then any others. Pretty nearly everything you want is on central: use search.maven.org to search it.

If something you want isn’t on central, there’s not much you can do to find out if it is somewhere else.