This is probably not your problem, but I thought I would share some
recent experience with maven, repositories and dependency debugging.
I was trying to set up a local artifact repository to do mirroring of
maven dependencies. This is useful for dependencies that are not in
central, that might disappear.
Anyway, to fully test my 'mirror' I started with an empty repository and
would try to build my projects. I discovered a really interesting
situation. Take a look at these two pom files from two different maven
repos.
http://repo1.maven.org/maven2/commons-dbcp/commons-dbcp/1.2.2/commons-dbcp-1.2.2.pom
http://jcenter.bintray.com/commons-dbcp/commons-dbcp/1.2.2/#commons-dbcp-1.2.2.pom
Notice how the second one is different then the first. I suspect the
second one must have been autogenerated. In any case though, it causes
a really big problem if that is where the dependency gets pulled down from.
So, my overall point is, when you're starting from an empty maven repo,
you can definitely get really weird and odd things happening. It can be
really hard to debug. (in the above problem, it 'manifested' as a junit
test failure about a missing class!)
---- Cris J H
On 06/13/2014 09:37 AM, Drew Wills wrote:
Folks,
I'm encountering a new Maven dependency issue with echcache. It seems
to happen always (small sample size) on a machine that doesn't have
these artifacts cached in the local repo.
These items do seem to be in m2 central. I'm not sure how Maven is
getting the 'null:ehcache-web:jar:null' (see below) but I suspect it's a
factor in the issue.
drew
---
BUILD FAILED
/home/awills/Dropbox/Jasig/portal/uPortal/build.xml:635: The following
error occurred while executing this line:
/home/awills/Dropbox/Jasig/portal/uPortal/build.xml:1437: The following
error occurred while executing this line:
/home/awills/Dropbox/Jasig/portal/uPortal/build.xml:1372: The following
error occurred while executing this line:
/home/awills/Dropbox/Jasig/portal/uPortal/build.xml:1315: The following
error occurred while executing this line:
/home/awills/Dropbox/Jasig/portal/uPortal/build.xml:1318: The following
error occurred while executing this line:
/home/awills/Dropbox/Jasig/portal/uPortal/build.xml:1375: The following
error occurred while executing this line:
/home/awills/Dropbox/Jasig/portal/uPortal/build.xml:1227: Unable to
resolve artifact: Unable to get dependency information: Unable to read
the metadata file for artifact 'net.sf.ehcache:ehcache-web:jar': Cannot
find parent: net.sf.ehcache:ehcache-web-parent for project:
null:ehcache-web:jar:null for project null:ehcache-web:jar:null
net.sf.ehcache:ehcache-web:jar:2.0.4
from the specified remote repositories:
central (http://repo1.maven.org/maven2),
sonatype-nexus-snapshots
(https://oss.sonatype.org/content/repositories/snapshots),
apache-snapshots (http://repository.apache.org/snapshots)
Path to dependency:
1) org.jasig.portal:uportal-war:war:4.1.0-SNAPSHOT
2) org.jasig.resourceserver:resource-server-utils:jar:1.0.38
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