how is Maven 3 host look up different to Maven 2? - maven

Question

I am working to migrate from Maven 2 to Maven 3. I have purposely removed the host and port from the messages and settings.
Maven 2 currently works fine with the Artifactory central repository we have setup behind a firewall. When I switch to using Maven 3 it fails to download the plugins with the error message:
[ERROR] Plugin org.apache.maven.plugins:maven-install-plugin:2.3.1 or
one of its dependencies could not be resolved: Failed to read
artifact descriptor for org.
apache.maven.plugins:maven-install-plugin:jar:2.3.1: Could not
transfer artifact
org.apache.maven.plugins:maven-install-plugin:pom:2.3.1 from/to
central (http:/ /:/artifactory/plugins-release): Access
denied to:
http://:/artifactory/plugins-release/org/apache/maven/plugins/maven-install-plugin/2.3.1/maven-install-plugin-2.3.1.pom
, ReasonPhrase:Forbidden.
Here are my settings:
<?xml version="1.0" encoding="UTF-8"?>
<settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd" xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<proxies>
<proxy>
<id>andy</id>
<active>true</active>
<protocol>http</protocol>
<host>proxyip</host>
<port>80</port>
<username>user</username>
<password>password</password>
<nonProxyHosts>host</nonProxyHosts>
</proxy>
</proxies>
<servers>
<server>
<username>user</username>
<password>password</password>
<id>central</id>
</server>
<server>
<username>user</username>
<password>password</password>
<id>snapshots</id>
</server>
</servers>
<profiles>
<profile>
<repositories>
<repository>
<snapshots>
<enabled>false</enabled>
</snapshots>
<id>central</id>
<name>libs-release</name>
<url>http://<host>:<port>/artifactory/libs-release</url>
</repository>
<repository>
<snapshots />
<id>snapshots</id>
<name>libs-snapshot</name>
<url>http://<host>:<port>/artifactory/libs-snapshot</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<snapshots>
<enabled>false</enabled>
</snapshots>
<id>central</id>
<name>plugins-release</name>
<url>http://<host>:<port>/artifactory/plugins-release</url>
</pluginRepository>
<pluginRepository>
<snapshots />
<id>snapshots</id>
<name>plugins-snapshot</name>
<url>http://<host>:<port>/artifactory/plugins-snapshot</url>
</pluginRepository>
</pluginRepositories>
<id>artifactory</id>
</profile>
</profiles>
<activeProfiles>
<activeProfile>artifactory</activeProfile>
</activeProfiles>
</settings>
I have checked that the correct plugin and version exists in artifactory, this does seem to be an access issue. Has something changed between Maven 2 and Maven 3 where the configuration needs updating?

Answer 1

There is a typo in the configuration (probably settings.xml or a POM file): http://:/artifactory/ isn't a valid URL, try http://artifactory/ instead.
EDIT If the URL is valid in a browser, then Maven has no access.
What the error message says: Maven tried to download the file and the server responded with HTTP status 403 (Forbidden). Since it works with a web browser, this is most certainly a problem with settings.xml and permissions on the Artifactory server.
I once had a similar problem with Nexus; it was configured to deny access to certain packages.
Check the log files of the repository server. You can also try to remove any <server> entries in settings.xml - the browser also connects without logging in. And (of course) make sure user names and passwords are correct.

Answer 2

You defined a proxy between your machine and your Artifactory server on the intranet. Usually, that is not the correct setup. Artifactory might need a proxy to reach the servers on the internet (the remote repositories), but maven probably must access Artifactory without proxy.

Answer 3

I fixed this issue by re-downloading and refreshing my Maven 3 install. There must have been something wrong with the install.