gistfile1.java

<artifactId>maven-clean-plugin</artifactId>
<version>2.4.1</version>
<configuration>
<filesets>
<fileset>
<directory>../YOUR_DEPLOYMENT_DIRECTORY</directory>
<includes>
<directory>gwt-unitCache/**</directory>
</includes>
<followSymlinks>false</followSymlinks>
</fileset>
</filesets>
</configuration>
<executions>
<execution>
<id>gwt-unitCache</id>
<phase>install</phase>
<goals>
<goal>clean</goal>
</goals>
</execution>
</executions>
</plugin>