The ACR Plugin is capable of filtering the deployment descriptor (/META-INF/application-client.xml) for you, if you have the need to inject values into it during the build.
To filter the deployment descriptor add the following configuration to your POM:
<project>
...
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-acr-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<filterDeploymentDescriptor>true</filterDeploymentDescriptor>
</configuration>
</plugin>
</plugins>
</build>
...
</project>