App2 needs some extra features that only version 2 provides. We cannot set the version in the company-root as one property because only one version will take place. One solution to this new requirement is to define dependency management and versioning at the app1 and app2 projects.
App1 and App2 are responsible and in control of the context of the sub-module projects. Furthermore, changes can take place more easily. At this point, we have to mention the profile section and its use. A lot of the staff being said above can be grouped into different profiles. For example, we can have one profile for the X version of our commons library and another profile for the Y version of commons.
Another example would be two have different profiles for the environments like test environment and a demo environment. We are going to modify the parent root pom. Also according to Maven's introduction to profiles. The profile section can declare and modify the following elements. When following these steps, or setting up a similar architecture, be sure none of this is taken for granted.
Rather, one should study and research what the needs and requirements really are, and take actions accordingly. This article is meant to provide a more general look at building multi-module projects with Maven, providing ideas and solutions to more general problems. The complete git repo is available here. Thanks for visiting DZone today,. Edit Profile. Sign Out View Profile. Over 2 million developers have joined DZone.
Learn more about basic dependency management and versioning with Maven. Like Join the DZone community and get the full member experience. Join For Free. So, with that in mind, let's get started. Introduction When dealing with large-scale software, we have to communicate, work, and cooperate with a lot of people — whether in an organization or a community.
And that was exactly the reaction of quite a good number of respondents. This got me thinking, if so many thought that either of these two POM files should result on a build error it might be because additional tool support is aware of such bad practice. Let's ask the IDEs!
Let's begin with Eclipse. Creating a simple Maven project with Eclipse is a straight forward operation by following the project creation wizzard. Adding the two duplicate dependencies to the POM file results in a view similar to this one.
Let's see what we have here. No indication on the editor that the POM file contains duplicate dependencies. No warnings nor errors to be found in the Problems view. Of course, if we execute mvn verify on the console we get the same warning as before, good.
Now, there might be a way to have a resolved dependencies view but I must confess I'm not an Eclipse user and I didn't bother looking too much into it, why? Because every other IDE that follows offers you that view in an intuitive manner. Let's move on to VS. Opposed to Eclipse, for VS. Code I had to install 2 additional extensions to get Maven support, after all VS.
How does this work!?! Thanks lol! For such cases, you can for instance use the maven-shade-plugin. Create a maven project with a single dependency, one of the versions you need. Add the shade plugin and let it create a shaded jar. It will basically re-wrap the classes under a different artifact G:A:V. Do this for all versions you need. You may use classifier to differentiate the shaded versions. In your project, depend on these artifacts. Finally, exclude the original dependencies, give them the scope "provided".
Here is the relevant part of the Maven documentation , which explains how Maven chooses the version of a dependency when there is more than one possibility: Dependency mediation - this determines what version of an artifact will be chosen when multiple versions are encountered as dependencies. Steve Chambers Steve Chambers Ryan Wood Ryan Wood If I understand the situation correctly, I think you can specify it once in your own pom under the dependencyManagement section. This is how I got around it.
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Featured on Meta. Type 'haxe' to see the description for the plugin. Select 'Install' to install it. Allow IDEA to restart and initialize the plugin. Exporting and importing settings Go to File Export Settings from the main menu. Specify the settings to export the Export Settings dialog box by selecting the checkboxes next to them. All of them are selected by default. Specify the fully qualified name and path or click on the Browse button to choose the.
How can I download Maven dependencies in IntelliJ? Category: technology and computing programming languages. IntelliJ should download and add all your dependencies to the project's classpath automatically as long as your POM is compliant and all the dependencies are available.
Where are Maven dependencies stored? Does maven download dependencies automatically? How do I update my local m2 repository? What is the use of Maven dependency plugin? What is Maven build? How do I run a Maven update? Is Maven installed with IntelliJ? Does IntelliJ have maven?
What is Maven used for in Java?
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