Replace a String value of a property in Apache Maven (Workaround)

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.seitenbau.demo.maven</groupId>
  <artifactId>maven-properties-replace</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <build>
    <plugins>
      <!-- modify content of a maven property and save it into a new property 
           via Groovy Maven Plugin ... -->
      <plugin>
        <groupId>org.codehaus.groovy.maven</groupId>
        <artifactId>gmaven-plugin</artifactId>
        <executions>
          <execution>
            <phase>generate-sources</phase>
            <goals>
              <goal>execute</goal>
            </goals>
            <configuration>
              <source>
                System.setProperty("versionWithOutPrefix", "${version}".replace('-SNAPSHOT', ''))
              </source>
            </configuration>
          </execution>
        </executions>
      </plugin>
      <!-- Sample how to use the new property versionWithOutPrefix-->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-antrun-plugin</artifactId>
        <version>1.6</version>
        <executions>
          <execution>
            <id>generate-sources</id>
            <phase>generate-sources</phase>
            <configuration>
              <target>
                  <echo message="info the version is: ${version} "/>
                  <echo message="info the version without SNAPSHOT pefix is: ${versionWithOutPrefix} "/>
              </target>
            </configuration>
            <goals>
              <goal>run</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

</project>