Used code from main branch, so should affect Magnolia 4.5.7.

Problem

When I try to create an Eclipse project with Maven (mvn eclipse:eclipse) from the Magnolia source code (magnolia_main.pub), I always get the following error from Maven:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-eclipse-plugin:2.8
:eclipse (default-cli) on project magnolia-core: Request to merge when 'filterin
g' is not identical. Original=resource src/main/resources: output=target/classes
, include=[**/*], exclude=[**/*.java], test=false, filtering=false, merging with
=resource src/main/resources: output=target/classes, include=[META-INF/magnolia/
*|**/license.xml], exclude=[**/*.java], test=false, filtering=true -> [Help 1]

Suggested Solution

Apparently it helps to explicitly specify the plugin-version when running the maven-eclipse plugin:

$ mvn org.apache.maven.plugins:maven-eclipse-plugin:2.6:eclipse

However, the plugin version can also be specified in the (parent-) pom.xml like this:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-eclipse-plugin</artifactId>
  <version>2.6</version>
</plugin>

If specified like this, you can simply run the usual mvn eclipse:eclipse without getting that strange error. Might save people some time.