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The Eclipse IDE (Integrated Development Environment) provides a platform for developing Java applications. You can also use other Java IDEs such as IntelliJ IDEA.

To run Eclipse your machine requires Java. Both JRE (Java Runtime Environment) and JDK (Java Development Kit) are capable to run Eclipse. But since you anyway will require a JDK in its proper version to develop a Magnolia project, we recommend to make sure to have your JDK before installing Eclipse. (See Java Development Kit.)

Installing Eclipse

The following step-by-step procedure assumes that you are working on a WINDOWS machine. Nevertheless, the installation procedure on Linux or OS-X is very similar.

  1. Go to Eclipse Downloads, select the package Eclipse IDE for Java EE Developers and download a 32-bit or 64-bit -version according to your machine.
  2. Extract the ZIP file on your computer. This procedure assumes the file is extracted to C:\Program Files\Eclipse.
  3. Double-click the Eclipse application executable. Tip: Create a shortcut to the application.
  4. Select a workspace directory to store your projects.
  5. Click OK.


Eclipse offers many plugins to make your life easier. Depending on the version you are installing, Eclispe is already bundled with more or less plugins.

To check out Magnolia source code from our git repository you should install the Egit plugin. See the instructions on our wiki.

If you are using an older version of Eclipse, you may require the following:


JRE or JDK not found

If either of the following errors occur, you need to modify eclipse.ini in the Eclipse directory.


"The Maven Integration requires that Eclipse be running in a JDK, because a number of Maven core plugins are using JARs from the JDK."

To modify eclipse.ini:

  1. Open eclipse.ini in a text editor.
  2. Add the following line where JDKlocation is the location of javaw.exe in the JDK:
    -vm JDKlocation
  3. Save the file.


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