How to search public Maven/Ivy repositories for a particular class?

Question

There are web sites like http://mvnrepository.com/ letting to search for an "artifact" and giving a definition I can add to my project for a library to be downloaded automatically from a public repository.

But this particular example (mvnrepository.com) (the only working I know actually) is by-definition limited to "search by group, artifact or description" while I would like to search by a class full name. For example I'd like to enter org.apache.commons.lang.NotImplementedException to get <dependency org="commons-lang" name="commons-lang" rev="2.6"/> (or alike) as the answer. Is there a facility for this?

Cuccuckold

I usually start at jarfinder.com. – Chrischrism

Answer 1

The answer of @khmarbaise is straight and correct, but if you possibly want to search over few additional public Maven repos (like JBoss), not only Maven Central, I recommend using http://grepcode.com.

EDIT: Unfortunately it seems http://grepcode.com, I used to strongly recommend for such a stuff, is dead now. Currently I don't know a better place than https://search.maven.org, already answered by @khmarbaise.

Predisposition

While it could be handy sometimes, right now indexed jars in GrepCode are quite outdated – Kaminsky

Getting HTTP 503 Service Unavailable for grepcode.com – Herra

Yep, it seems Grepcode is dead (RIP - I used that site a LOT), so hope the community can find a new website for doing this – Gigue

Answer 2

If you like to search for Classes you should use http://search.maven.org and click on "Advanced search"...This is for Maven Central

Vindicate

That "advanced search" gave me 470 artifacts for one standard class :-( Is there a less advanced but more usable search engine? – Enginery

You can use something like this in a search box: v:"2.6.4" c:"com.sun.jersey.spi.container.servlet.ServletContainer" – Bobbee

Answer 3

I suggest to try all the search engines. Now I've lost hours thinking of how to upload an artifact, while it turned out to be already present in the repo. This is junit-addons, which is both groupId and artifactId, as can be verified in pom. My attempts:

1. http://mvnrepository.com - no
2. http://search.maven.org - yes
3. http://grepcode.com - no
4. http://jarfinder.com - yes, but only a direct download, not for maven

I am a maven newbie, so I cannot state that the second link is the best. Although tt was the only helpful in my case.

Mispickel

The jarfinder domain is now for sale. – Stratum

Answer 4

https://javalibs.com/ is a good online site to search maven repos.

Comment at Apr. 17th 2022:
It seems this site can't be opened any more.

Innes

Answer 5

One more search engine: JAR-Download.com:

• The class search page: Search classes in the Maven repository.
• For the sake of reference, the archived search page: Search classes in the Maven repository.

Inheritor

this answer provides the simplest solution for the request – Alula