How to override jetty.xml with jetty.port
===

I'm using maven-jetty-plugin and trying to override my jetty.xml setting with the -Djetty.port=8090 but it's not working. Only when I remove the connector part from the jetty.xml file I get the port to be 8090.

So:

     mvn jetty:run -Djetty.port=8090

With the connector starts in port 8080

Without the connector starts in port 8090

Problem is I need to configure acceptors, stats and other stuff. I tried removing only the port from the connector but it didn't work.

I'm using:
    
    JAVA 1.7_05
    MAVEN 3.0.4
    Jetty 8.1.4
    Linux Ubuntu 12.04 64bits

Here's my pom.xml plugin configuration:

    <plugin>
				<groupId>org.mortbay.jetty</groupId>
				<artifactId>jetty-maven-plugin</artifactId>
				<version>8.1.4.v20120524</version>
				<configuration>
					<stopKey>foo</stopKey>
					<stopPort>9990</stopPort>
					<jettyXml>src/main/webapp/WEB-INF/jetty.xml</jettyXml>
				</configuration>
				<executions>
					<execution>
						<id>start-jetty</id>
						<!-- <phase>pre-integration-test</phase> -->
						<goals>
							<goal>run</goal>
						</goals>
						<configuration>
							<scanIntervalSeconds>0</scanIntervalSeconds>
						</configuration>
					</execution>
					<execution>
						<id>stop-jetty</id>
						<!-- <phase>post-integration-test</phase> -->
						<goals>
							<goal>stop</goal>
						</goals>
					</execution>
				</executions>
	</plugin>

Jetty.xml connector conf:

    <Call name="addConnector">
      <Arg>
          <New class="org.eclipse.jetty.server.nio.SelectChannelConnector">
            <Set name="host"><Property name="jetty.host" /></Set>
            <Set name="port"><Property name="jetty.port" default="8080"/></Set>
            <Set name="maxIdleTime">300000</Set>
            <Set name="Acceptors">4</Set>
            <Set name="statsOn">false</Set>
            <Set name="confidentialPort">8443</Set>
	    <Set name="lowResourcesConnections">20000</Set>
	    <Set name="lowResourcesMaxIdleTime">5000</Set>
          </New>
      </Arg>
    </Call>

Thanks in advance!