Vaadin Portal Integration using Maven

Hello everyone,

I’m currently working on Portlet 2.0 support for Vaadin and I have a preliminary implementation the vaadin portlet projet as per the guidence given in the vaadin totorial [url=]

[/url] , the portal project is working fine in the Liferay for the war i exported from the eclipse but my goal is to migrate this project to Maven and do further thing going foward.
so i have converted the project in to maven using eclipse wizard, but after running maven build i’m getting the following error mentioned below ,


Total time: 21.190s
Finished at: Thu Apr 05 15:02:10 IST 2012
Final Memory: 5M/38M

Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.1.1:w
ar (default-war) on project myportlet: Error assembling WAR: webxml attribute is
required (or pre-existing WEB-INF/web.xml if executing in update mode) → [Help

To see the full stack trace of the errors, re-run Maven with the -e swit
Re-run Maven using the -X switch to enable full debug logging.

For more information about the errors and possible solutions, please rea
d the following articles:

and also i have added the plugins in my pom.xml as given below <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>2.1.1</version> <configuration> <!--webappDirectory>/sample/servlet/container/deploy/directory</webappDirectory--> <packagingExcludes>**/web.xml</packagingExcludes> </configuration> </plugin>

can any one please guide me how to achive this …

Thanks in advance

Have you tried the following?