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Instructions for developers

The build instructions describe how to build the latest version of PMS from its sources. For most people this will be enough to keep up to date with the latest official developments. However, GitHub also makes it very simple for developers to fork their own version of the official PMS sources to add their own tweaks or features. GitHub facilitates submitting these features as "Pull Requests" to the official PMS development team.

This section describes how to set up your own fork and how to work with it from Eclipse (other IDEs should require similar configuration).

  • Create a GitHub account (

  • Set up your machine for GitHub development (

  • Fix the Git line endings on your machine (

  • Go to the GitHub PMS repo ( and press the "Fork" button on the top right of the page to create your own forked repository of the official sources.

  • Clone the new GitHub repo to your local machine. The clone URL can be seen on the main page of your repository. It should be something like this (replace YOURNAME with your actual GitHub name):

      git clone YOURNAME

You now have the new repository on your local machine. It is time to set up an integrated development environment to work with it. The steps below explain how to set up Eclipse for development with Maven and Git.

  • Download and install the Eclipse IDE for Java Developers (

  • Install the m2e Eclipse plugin (

  • Install the EGit Eclipse plugin (

  • In Eclipse, select the menu "Window > Show View > Git Repositories". Then select "Window > Navigation > Show View Menu", choose "Add a Repository". Browse for the directory where you cloned your repository and press the "Search" button. Select your forked repository and press "OK". The repository should appear in the Git Repositories view.

  • Press the right mouse button on the repository and select "Import Maven Projects" from the menu. Select the project "/pom.xml" and press "Finish".

    Note: if a project with the same name already exists, click "Advanced" and set the "Name template" to [artifactId]-YOURNAME (replace YOURNAME with your GitHub name). Then press "Finish".

You now see the sources in Eclipse, but the project is still missing the "Git" nature. In other words, it is not tied to the local repository yet. This means you cannot perform any Git actions from Eclipse yet. Add the missing connection by sharing the project:

  • Press the right mouse button on the newly created project and select the menu "Team > Share Project...". Select "Git" and press "Next >". Check the checkbox "Use or create repository in parent folder of project" and make sure the project is selected. Then press "Finish".

Verify that your project is now under Git control. Press the right mouse button on the project and under "Team" you now see all options to work with Git.

You can build PMS from Eclipse:

  • Create a new run configuration under "Run > Run Configurations...", right mouse button on "Maven Build", select "New", Name: Build PMS, Goals: package. Select the tab "JRE" and add the following VM arguments -Xmx1500m -XX:MaxPermSize=256m. Finally, press the "Apply" button.

You will want to run PMS from Eclipse while developing. This is how you do it:

  • Create a new run configuration under "Run > Run Configurations...", right mouse button on "Maven Build", select "New", Name: Run PMS, Base directory: ${project_loc}, Goals: "test", Profiles: run-from-eclipse. Select the tab "JRE" and add VM arguments -Xmx1500m -XX:MaxPermSize=256m. Finally, press the "Apply" button.

You are now ready to start developing!

When you are happy with your changes, you can commit them to your local repository from Eclipse using right mouse button, "Team > Commit...".

When you are satisfied with your commits and want to publish them to your repository at GitHub, you can press the right mouse button on the project and select "Team > Push to Upstream".

If you would like to contribute to the PMS project, you can send a "Pull Request" to the development team. See the help on GitHub for more details (

Line endings

If you plan to commit source code, be sure to configure git to deal properly with cross platform line endings.

On Mac OS X and Linux:

git config --global core.autocrlf input

On Windows:

git config --global core.autocrlf true

For more information, see

See for instructions on how to set up your local development environment.

Thanks and acknowledgements

Thanks to the following developers and companies for providing tools used in PMS development: