I am new to Maven. Using the instructions mentioned here: http://activeintelligence.org/blog/archive/hosting-maven-repository-for-third-party-jars-on-git-bitbucketgithub/, I created a github maven repo for third-party jar. I can see the jar (and the corresponding pom) here: https://github.com/sushilmittal/wiki-keyword-extraction/tree/master/repository/com/rapid_i/rapidminer/5.3.006
My pom.xml has these two entries corresponding to the above jar:
<dependency>
<groupId>com.rapid_i</groupId>
<artifactId>rapidminer</artifactId>
<version>5.3.006</version>
</dependency>
and
<repositories>
<repository>
<id>wiki-keyword-extraction</id>
<url>https://github.com/sushilmittal/wiki-keyword-extraction/tree/master/repository/</url>
</repository>
</repositories>
When I do mvn compile, I get the following warning:
Downloading: https://github.com/sushilmittal/wiki-keywordextraction/tree/master/repository/com/rapid_i/rapidminer/5.3.006/rapidminer-5.3.006.pom
[WARNING] Checksum validation failed, expected https://github.com/sushilmittal/wiki-keyword-extraction/tree/master/repository/com/rapid_i/rapidminer/5.3.006/rapidminer-5.
3.006.pom
which further leads to the following error:
[ERROR] Failed to execute goal on project DataIndex: Could not resolve dependencies for project DataIndex:DataIndex:jar:0.0.1-SNAPSHOT: Could not find artifact com.rapid_i:rapidminer:jar:5.3.006 in wiki-keyword-extraction (https://github.com/sushilmittal/wiki-keyword-extraction/master/repository/) -> [Help 1]
If I manually go to the location https://github.com/sushilmittal/wiki-keywordextraction/tree/master/repository/com/rapid_i/rapidminer/5.3.006/, I can see the files. So I fail to understand why maven is unable to download the jar/pom from that location.
Any ideas?
First off, please read this post
Second, using a source control system as a Maven Repository is a really bad plan. The recommended thing to do is use a Maven Repository Manager. There are at least three implementations available and there is even an on-line hosting service.
Thirdly, if you insist on following this misguided plan, you need to tell Maven the https path to the raw files in the GitHub repo, not the HTML rendering of the file content with line numbers etc
Related
I hosted a java project on github.
The project is located here.
The project is really just a java library, and I wanted to create a maven repository for it. Because this is tricky, I followed a guide which explained me which project structure to follow. He applies a trick: create a 2nd branch named "repository". As you can see the jar files are in there.
That all went well, I made my first build, and then I created a java "Hello World" project to test if I could use this new maven dependency. So, I created a pom file with a dependency:
<dependency>
<groupId>brugo</groupId>
<artifactId>brugo</artifactId>
<version>0.1.0</version>
</dependency>
And to tell maven where to find this dependency, I added this one:
<repositories>
<repository>
<id>brugo</id>
<url>https://github.com/brugo/brugo/raw/repository/</url>
<snapshots>
<enabled>true</enabled>
<updatePolicy>always</updatePolicy>
</snapshots>
</repository>
</repositories>
The good thing: sometimes it works.
The bad thing: sometimes it does not work.
And I am trying to find out what could be wrong. This is what IntelliJ looks like when things go wrong:
And I've seen this error message showing up:
[ERROR] Failed to execute goal on project xxx:
Could not resolve dependencies for project xxx:
Could not find artifact brugo:brugo:jar:0.1.0 in
brugo (https://github.com/brugo/brugo/raw/repository/) -> [Help 1]
I tried an mvn clean install -U several times, but without success.
I had the same problem on a different computer yesterday, then suddenly I got it to work without really knowing how.
Special thanks to #wargre for pointing me in this direction.
It's indeed easier (and more convenient) to set it up to be directly in the central maven repository.
http://central.sonatype.org/pages/ossrh-guide.html explains all the required steps. Here follows a summary.
First release:
Create a JIRA account and a project
Add plugins to the pom.xml file
Add more meta to the pom.xml
Download/install GPG and create keys
Create a settings.xml which contains your credentials.
Run mvn clean deploy
Verify the result in the staging repository
Release when happy, drop and retry while unsatisfied.
Post a comments on the JIRA ticket
Admire the result in the maven central repository.
Consecutive releases:
Update the version number in pom.xml
Run mvn clean deploy
Release (manual/automatic)
I have used the maven archetype10 as shown below and created the project structure and everything was fine.
mvn archetype:generate -DarchetypeGroupId=com.adobe.granite.archetypes -DarchetypeArtifactId=aem-project-archetype -DarchetypeVersion=10 -DarchetypeRepository=https://repo.adobe.com/nexus/content/groups/public/
Now i wanted to add the aem uber-jar dependency and added the below dependency tags in the project pom.xml and in core module pom.xml respectively and also my repository tags are same as https://repo.adobe.com/
<dependency>
<groupId>com.adobe.aem</groupId>
<artifactId>uber-jar</artifactId>
<version>6.2.0</version>
<scope>provided</scope>
</dependency>
after adding the above dependency tag when i compile it is giving me the below error.
[ERROR] Failed to execute goal on project aemexample.core: Could not
resolve dependencies for project
com.krishh.example:aemexample.core:bundle:0.1: Could not transfer
artifact com.adobe.aem:uber-jar:jar:6.2.0 from/to
adobe-public-releases
(http://repo.adobe.com/nexus/content/groups/public): hostname in
certificate didn't match: <repo.adobe.com> != <devedge.day.com> OR
<devedge.day.com> -> [Help 1]
Is there anything am missing to add extra dependencies to compile and run this successfully.
You seem to be missing a classifier in your dependency. Try adding the one for AEM APIs, as suggested in the documentation. This should help Maven locate the necessary JAR in the repository:
<dependency>
<groupId>com.adobe.aem</groupId>
<artifactId>uber-jar</artifactId>
<version>6.2.0</version>
<classifier>apis</classifier>
<scope>provided</scope>
</dependency>
If that doesn't help, you should also look at the certificate warning. Check out the answers to this question for more information on the subject.
TL;DR - possible causes could be:
an old Maven version using an HTTP library that is not compliant with the certificate being used by the repository - try upgrading Maven
erroneous certificate used by the server
potential network configuration issues between you and the repository
an actual attempt at getting you to download a malicious file by a party pretending to be the Nexus
How can I add maven artifact into an existing maven project.I understand that I can build a jar locally and use file: protocol but this is possible using maven also.
For example I have a basic maven project
https://maven.apache.org/guides/getting-started/index.html#How_do_I_make_my_first_Maven_project and the artifact:
<repositories>
<repository>
<id>myrepo.org</id>
<name>MyRepository</name>
<url>http://mywork.com/repository</url>
</repository>
</repositories>
<dependency>
<groupId>org.ethereum</groupId>
<artifactId>ethereumj-core</artifactId>
<version>1.1.0-RELEASE</version>
I tried adding the code above to the project pom.xml fails because dependency is not in central maven repo.
mvn clean install
I then tried editing my settings.xml by adding the tag, that also failed because dependency was not found.
Im overlooking something pretty basic here.
Maven works on the concept of local and remote repositories.
The local repository refers to a copy on your own installation that is a cache of the remote downloads, and also contains the temporary build artifacts that you have not yet released.
Remote repository is repository you access the artifacts via file or http / ftp protocols , it can be an internal repo or a remote public hosted.
When you add dependency maven search that artifact in local if not found then remote repo will be searched. Still not found then error is reported.
https://maven.apache.org/guides/introduction/introduction-to-repositories.html
In your case, 'ethereumj-core' can not be located neither of location, you need find this jar and do a manual install to local repo.
mvn install:install-file -Dfile=< folder >\ethereumj-core.1.1.0-RELEASE.jar -DgroupId=org.ethereum
-DartifactId=ethereumj-core -Dversion=1.1.0-RELEASE -Dpackaging=jar
once properly installed maven should be able find this artifact when you add this as dependency to any of the projects (in pom.xml).
<dependency>
<groupId>org.ethereum</groupId>
<artifactId>ethereumj-core</artifactId>
<version>1.1.0-RELEASE</version>
</dependency>
I am having problems getting artifactory to suppy a jar file to a maven 3 build process
I have deploy the jar file gwt-openlayers-server-1.0-SNAPSHOT.jar to libs-snapshot-local
I can find this jar file by using the general lookup in the Artifacts tab, it shows up as
<dependency>
<groupId>org.gwtopenmaps.openlayers</groupId>
<artifactId>gwt-openlayers-server</artifactId>
<version>1.0-20130320.151820-1</version>
</dependency>
So I known artifactory has it.
When I attempt to do a build using a pom with the following section in it
<dependency>
<groupId>org.gwtopenmaps.openlayers</groupId>
<artifactId>gwt-openlayers-server</artifactId>
<version>1.0-SNAPSHOT</version>
I get a build error with a diagnostic about being unable to find gwt-openlater-server, see listing.
I don't understand why I am having this problem, artifactory has the file!
I am using mvn -U compile
Any suggestions
Check if you have maven-metadata.xml corruption, or perhaps your snapshot info is empty. It shouldn't be.
I am working on project which has multiple dependencies. Most of the dependencies are available at our centralized maven repository. My project includes some JARs which only specific to my application and unavailable at our Maven repo. Due to some policy/restriction i cant deploy that jars to our maven repository.
When i install these jars in my local repository(i.e.UserHome/.m2/repository) and compile the code its working fine.
Now i want these dependencies in SVN so that we can build the application package using Continuum.(We cant refer local dependency from Continuum server.)
Just to achieve these i copied the locally installed dependency from .m2/repository and committed it in SVN. Then i declared repository in pom.xml like..
<repositories>
<repository>
<id>repo.pu</id>
<name>repo.pu</name>
<url>https://URL/migration2/APP1/src/main/lib/</url>
<layout>default</layout>
</repository>
</repositories>
Now to use dependency from above repo i added code like...
<dependencies>
<dependency>
<groupId>repo.pu</groupId>
<artifactId>Ptestval</artifactId>
<version>1.0</version>
</dependency>
</dependencies>
When i type mvn verify i am getting the below error..
[ERROR] Failed to execute goal on project APP1: Could not resolve dependencies f
or project fileservices.migration2:APP1:jar:1.0: Failed to collect dependencies
for [repo.pu:Ptestval:jar:1.0 (compile)]: Failed to read artifact descriptor for
repo.pu:Ptestval:jar:1.0: Could not transfer artifact repo.pu:Ptestval:pom:1.0
from/to repo.pu (https://URL/migration2/APP1/src/main/lib/): Access denied to:
https://URL/migration2/APP1/src/main/lib/repo/pu/Ptestv
al/1.0/Ptestval-1.0.pom -> [Help 1]
Could you please someone help me to resolve these issue?
EDIT: I created a repository like ..
<repositories>
<repository>
<id>repo.pu</id>
<name>repo.pu</name>
<url>https://SVNUserName:SVNPassword#SVN_URL/BaseProj/ProjA/src/main/lib</url>
<layout>default</layout>
</repository>
</repositories>
This technique works perfectly at my Personal laptop. Maven downloads the listed dependency from repo.
But when tries to use the same in my project on company network it is not working .. It gives the same error which i was getting before using this approach.
Can anyone help me please? What would be problem? Is it a network issue?
Set up a repository manager like Nexus and don't abuse Subversion for something it was not designed for. This is unfortunately done in Google Code.
You must configure your project to use wagon-scm.
See http://maven.apache.org/wagon/wagon-providers/wagon-scm/usage.html