Ant-Contrib foreach not working in Maven 2

[Morgovsky, Alexander \(US - Glen Mills\)]

I have the following code in the maven-antrun-plugin.  However, it is
not working.  May someone please tell me what is wrong with it?  Code
like this works perfectly in Ant.  Thanks.

<configuration>
        <tasks>
                <taskdef
resource="net/sf/antcontrib/antcontrib.properties">
                        <classpath>
                                <pathelement
location="ant-contrib-x.y.jar"/>
                          </classpath>
                </taskdef> 
                
                <foreach list="a,b,c," param="letter" target="print"/>
                
                <target name="print">
                        <echo message="Hello">
                </target>
        </tasks>
</configuration> 


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