Groovy grape not resolving artifacts in Maven central

Question

Fresh install of Groovy and for some reason it isn't pulling artifacts from Maven central:

$ grape resolve org.apache.httpcomponents httpclient 4.2.1
Error in resolve:
    Error grabbing Grapes -- [download failed: org.apache.httpcomponents#httpclient;4.2.1!httpclient.jar, download failed: org.apache.httpcomponents#httpcore;4.2.1!httpcore.jar, download failed: commons-logging#commons-logging;1.1.1!commons-logging.jar]

Complete -d debug log: https://gist.github.com/mrobinet/a86073e35771cab55665

Environment:

$ groovy --version
Groovy Version: 2.4.4 JVM: 1.7.0_79 Vendor: Oracle Corporation OS: Mac OS X

The artifacts clearly exist: https://repo1.maven.org/maven2/org/apache/httpcomponents/httpclient/4.1.2/

Things I've tried:

Adding Maven Central to ~/.groovy/grapeConfig.xml
grape -r https://repo1.maven.org/maven2 resolve org.apache.httpcomponents httpclient 4.2.1

Viewing the debug output, it doesn't even appear to be requesting it from central.

This might be a duplicate of stackoverflow.com/questions/19993227/…, but it is a year old with no answer. — Mike Robinet
Great idea! Edited to add a link to the gist: gist.github.com/mrobinet/a86073e35771cab55665 — Mike Robinet
Hm, I don't see it going out to any internet repository at all. It only checks your ivy caches and maven caches. Are you sure you are running with the default ivy config? — JBaruch
Yeah. The ~/.ivy directory does not even exist and no ~/.groovy/grapeConfig.xml either. — Mike Robinet

Mike Robinet Mike Robinet · Accepted Answer · 2018-07-03T16:35:21

I recently ran into this again and was able to figure out the issue. I ended up filing a bug with Groovy: https://issues.apache.org/jira/browse/GROOVY-8655

The problem occurs when you have only a POM file for the artifact in your Maven local repository (no jar file).

Groovy grape not resolving artifacts in Maven central

1 Answers