Replacing token in WAR web.xml from EAR pom.xml

Hello, I'm new to maven, and trying to navigate all the plugins and
syntax. Forgive me if this has been asked previously, but I can't seem to
things to work.

I have a root/parent project that contains several EAR projects, all which
use the same WAR project. I need to customize the contents of web.xml for
each EAR build/package. I'm not clear on the steps to do this. I tried
copying my ANT script over to the pom, but even though I could update the
copied web.war, it never carries over to the final *.ear package.

Here is what I'm attempting (shortcut.targetFull and realmName are defined
properties in this pom):

<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.7</version>
<executions>

*<execution>
<id>rename-realm</id>
<phase></phase>
<configuration>
<target> <unzip
src="${shortcut.targetFull}/web-${project.version}.war" dest="${*
*shortcut.targetFull}/web"/> <replace
file="${*
*shortcut.targetFull}/web/WEB-INF/web.xml" token="@REALM_NAME@"
value="${realmName}"/> <delete file="${*
*shortcut.targetFull}/web-${project.version}.war"/>
<zip destfile="${**shortcut.targetFull}/web-${project.version}.war"
basedir="${*
*shortcut.targetFull}/web" /> <delete
dir="${*

*shortcut.targetFull}/web" />
</target> </configuration>
<goals>
<goal>run</goal>
</goals> </execution>*
<execution>
<id>rename-package</id>
<phase></phase>
<configuration>
<target>
<tstamp>
<format property="TODAY_BUILD"
pattern="yyyyMMdd-HHmmss" locale="en,US"/>
</tstamp>
<copy
file="${project.build.directory}/${project.build.finalName}.ear"
tofile="${project.build.directory}/${project.name
}-${project.version}-${TODAY_BUILD}.ear"/>
</target>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>2.9</version>
<configuration>
<version>6</version>
<defaultLibBundleDir>lib</defaultLibBundleDir>
<displayName>myweb</displayName>
<initializeInOrder>true</initializeInOrder>
<modules>
<jarModule>
<groupId>${project.groupId}</groupId>
<artifactId>lib1</artifactId>

<includeInApplicationXml>false</includeInApplicationXml>
</jarModule>
<ejbModule>
<groupId>${project.groupId}</groupId>
<artifactId>ejb1</artifactId>
</ejbModule>
<webModule>
<groupId>${project.groupId}</groupId>
<artifactId>web</artifactId>
<contextRoot>/myweb</contextRoot>
</webModule>
</modules>
</configuration>
</plugin>
</plugins>
</build>