Eclipse building workspace loop when generating class via ant plugin

Question

We currently have following setup: We generate .properties files containing localization strings and we also generate a java interface that contains public static final String properties for each of the translation keys.

The configuration of the ant-run-plugin:

<plugin>
                <artifactId>maven-antrun-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>generate-sources</phase>
                        <configuration>
                            <tasks>
                                <ant antfile="src/main/resources/translation_export.xml"
                                    target="run">
                                    <reference torefid="maven.compile.classpath"
                                        refid="maven.compile.classpath" />
                                </ant>
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
</plugin>

To keep those files up to date with the translation (these are manipulated elsewhere) we setup a life-cycle mapping so that eclipse can execute the ant script with each incremental build. This causes eclipse to build the workspace endlessly.

EDIT:

My guess is that because the interface is part of the build path it will trigger a build each time