I have a Maven project that uses two dependency JARs which I built in my local environment. But, when I am trying to build the Maven project (clean install), it is failing since it is unable to find those two JARs. How do I pass those two JARs?
The project is pulled from Git and then built. It is working fine unless there are dependency JARs.
The common practice today is to upload it to some artifact storage (Nexus, Artifactory, Azure Devops Feed and so on).
If you have no one, you can install those jars to your local repository (on jenkins slave or master. You must copy your jars before.) using Maven Install Plugin .
In Maven, you draw your dependencies from a Maven repository. Many jars can be drawn from MavenCentral. In a company environment, you usually run your own Nexus/Artifactory, in which you manage your artifacts (that you built) and the external dependencies. This is the best place for your JARs.
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I am new to maven java projects. I have a maven java project, and a local repository for the dependency jars. I manually installed the jar by the command mvn deploy:.... whenever a dependency is needed. However now, I have a SDK provided by a third party vendor, it has a lib folder with more than 30 jars inside, in this case, how do I install all these 30 jars into Maven repository manually, and I have to make up the group-id and artifacts for each individual jar, and run the mvn deploy command one by one. Am I missing anything here? I thought Maven is supposed to make the project management easier. In this case, what are my options?
Install the jars in the lib to the repository one by one?
Convert my project back to regular java project, so that I can just copy the entire lib folder.
Any thoughts and help are highly appreciated!
Best
newMavenUser
I'm working on a Java web project using Heroku as hosting PaaS. As IDE I'm using Eclipse and I'm trying to deploy this project.
In a previous version the project had only Maven dependencies, but now I'm referencing another project as dependency of the main web-app that doesn't reside in the main repository.
Which is the right approach to this case? Should I use a single repository?
The "right" way to do it is making the project you depend on a published artifact in a Maven repository. But that is a pain for small projects.
Here are some other options:
Build the app locally from your /.m2/repository artifacts and deploy with Heroku Maven plugin
Check the JAR file dependency in to Git as an unmanaged dependency
Make the dependency a Maven module in your main project, but also make the module dir a Git submodule. That way it's still a separate project but can be deploy to Heroku as a single app.
If you decide to do it the "right" way, I recommend deploying the artifact to bintray.com, which is a little easier to use in this kind of scenario than, say, Sonatype.
I am working in a application which consume a webservice. I generated the webservice client using axis2codegen. Since it is generated code there are lot of duplicate codes exist. As per suggestion on code review we have to remove it and add it as jar. I created a jar and add to the local repository of the maven. But the problem is how can i check in the locally generateed jar to the svn, so that the user who check the project does not need to add it to the local repository manually as i did it.
Thanks in advance
Storing the .jar files in subversion isn't really the "maven way". You might want to consider setting up a corporate maven repository using something like nexus or artifactory and then deploy your .jar artifacts there instead.
Once that's done you can distribute a corporate settings.xml file pointing to this repository (or include it in each projects pom.xml file) and you can then manage your generated code like any other maven dependency.
HTH
Don't commit jar into SVN: dependency management has introduced the concept of "artifact repository" separating binaries from sources:
binary are saved into artifact repository
source are saved into source code management repository
In order to share the jar with your pears you should:
install the jar in a corporate maven repository like artifactory or nexus
add a dependency to the jar in your project pom
commit the pom into SVN
tell to your pears to check out from SVN the updated pom
You don't. In most circumstances you will use maven to deploy the project (the jar) to a repository manager (Nexus is by far the de facto for this).
Next you configure your co-workers to proxy their maven requests to yuor Nexus installation which itself "knows" about maven Central, thus providing a single point of presence for everything both from the outside world and published internally.
It's usually a good idea for another service such as Jenkins to be paired with a release plugin to execute the maven release procedure on your before, and for it to publish the artefacts too.
Here we have a long list of maven projects that our Jenkins installation builds upon noticing an SVN change. Upon the click of a button within Jenkins for the project, it can perform a complete build and release to our Nexus repository the project's newly built-and-tested artefacts.
I have a maven module with one pom.xml. I have added some external jars which don't have maven repository as external jars in the project build path. The module is working fine(no errors).
When I am building it using maven build, it says some of package names from external jars are not found. there are many like this. the reason is corresponding packages API (groupid,artifactid) are not part of the pom.xml.
I want to know how to build maven module in such scenarios.
Appreciate any help
Maven does not support using jars that are outside of Maven. You have two choices:
mvn install:install-file
mvn deploy:deploy-file
The first puts the jar in your local repo, the second in your shared repo manager, which you should have.
the question is:
i start a local lib to collect some common utils in it.
then i use eclipse m2e to run as Maven Install, and it truely generate the jar into my local cached repos dir.
and now, i want to use that lib as a dependency in my project, i just type the dependency xml as the other (like spring etc.).
but it just can load that lib in the maven dependencies libs.
I search the web and find that systemPath could work, but i don' t like this way. how can i use my local jar in a same way?
Install it into your repository. Either local (mvn install) or run repository software like Artifactory, Archiva or Nexus. http://maven.apache.org/repository-management.html
You can do a (non-Maven) build and:
install the JAR in your local "repo" directory,
manually upload it your group / corporate repository, or
install it in a so-called "internal repository" that you manage by hand: see http://maven.apache.org/guides/introduction/introduction-to-repositories.html.
(I have even resorted to using an "internal repository" that was part of the project's version control check-out; i.e. putting the JAR into version control.)
But I think that the best approach would be to Mavenize the build for the utility JAR, and handle it just like your main Maven projects.
Use goal install-file .
Like , mvn install-file.