Estou tentando usar as tarefas "se" da formiga no build do maven.

Encontrei muitos artigos que sugerem o uso da dependência "ant-nodeps". Eventualmente, todos esses truques não funcionaram no maven3 + ant 1.8.1 + maven-antrun-plugin 1.6.

"Ocorreu uma Ant BuildException: Problema: falha ao criar tarefa ou tipo se"

Alguma coisa pode ajudar?

Aqui está o código real (em vez disso, não é necessário, mas apenas no caso):

 <profiles>
    <profile>
        <id>smtpConfigurationProfile</id>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-antrun-plugin</artifactId>
                    <version>1.6</version>
                    <executions>
                        <execution>
                            <phase>validate</phase>
                            <goals>
                                <goal>run</goal>
                            </goals>
                            <configuration>
                                <tasks>
                                    <if>
                                        <isset property="${smtpFile}"/>
                                        <then>
                                            <delete file="${project.build.outputDirectory}/smtp.properties"/>
                                            <copy file="${smtpFile}"
                                                  tofile="${project.build.outputDirectory}/smtp.properties"/>
                                        </then>
                                        <elseif>
                                            <isset property="${smtpProfile}"/>
                                            <then>
                                                <delete file="${project.build.outputDirectory}/smtp.properties"/>
                                                <copy file="src/main/resources/${smtpProfile}.smtp.properties"
                                                      tofile="${project.build.outputDirectory}/smtp.properties"/>
                                            </then>
                                            <else>
                                                <delete file="${project.build.outputDirectory}/smtp.properties"/>
                                                <copy file="src/main/resources/production.smtp.properties"
                                                      tofile="${project.build.outputDirectory}/smtp.properties"/>
                                            </else>
                                        </elseif>
                                    </if>
                                </tasks>
                            </configuration>
                        </execution>
                    </executions>
                    <dependencies>
                        <dependency>
                            <groupId>org.apache.ant</groupId>
                            <artifactId>ant-nodeps</artifactId>
                            <version>1.8.1</version>
                        </dependency>
                    </dependencies>
                </plugin>
            </plugins>
        </build>
    </profile>
</profiles>