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 Using tasks not included in Ant's default jar
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 Carlos Sanchez
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 15 July 2008
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 ~~ Licensed to the Apache Software Foundation (ASF) under one
 ~~ or more contributor license agreements.  See the NOTICE file
 ~~ distributed with this work for additional information
 ~~ regarding copyright ownership.  The ASF licenses this file
 ~~ to you under the Apache License, Version 2.0 (the
 ~~ "License"); you may not use this file except in compliance
 ~~ with the License.  You may obtain a copy of the License at
 ~~
 ~~   http://www.apache.org/licenses/LICENSE-2.0
 ~~
 ~~ Unless required by applicable law or agreed to in writing,
 ~~ software distributed under the License is distributed on an
 ~~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 ~~ KIND, either express or implied.  See the License for the
 ~~ specific language governing permissions and limitations
 ~~ under the License.

 ~~ NOTE: For help with the syntax of this file, see:
 ~~ http://maven.apache.org/doxia/references/apt-format.html

Using tasks not included in Ant's default jar

 To use Ant tasks not included in the Ant jar, like Ant optional or custom tasks you need to add the dependencies needed for the task
 to run to the plugin classpath and use the <<<maven.plugin.classpath>>> reference if needed.

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<project>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>my-test-app</artifactId>
  <groupId>my-test-group</groupId>
  <version>1.0-SNAPSHOT</version>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-antrun-plugin</artifactId>
        <version>${project.version}</version>
        <executions>
          <execution>
            <id>ftp</id>
            <phase>deploy</phase>
            <configuration>
              <target>

                <ftp action="send" server="myhost" remotedir="/home/test" userid="x" password="y" depends="yes" verbose="yes">
                  <fileset dir="\${project.build.directory}">
                    <include name="*.jar" />
                  </fileset>
                </ftp>

                <taskdef name="myTask" classname="com.acme.MyTask" classpathref="maven.plugin.classpath"/>
                <myTask a="b"/>

              </target>
            </configuration>
            <goals>
              <goal>run</goal>
            </goals>
          </execution>
        </executions>
        <dependencies>
          <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
            <version>1.4.1</version>
          </dependency>
          <dependency>
            <groupId>org.apache.ant</groupId>
            <artifactId>ant-commons-net</artifactId>
            <version>1.8.1</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>

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 Another example of this is the use of {{{http://ant-contrib.sourceforge.net/}Ant-Contrib}} tasks:

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<project>
  [...]
  <build>
    [...]
    <plugins>
      [...]
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-antrun-plugin</artifactId>
        <version>${project.version}</version>
        <executions>
          <execution>
            [...]
            <configuration>
              <target>
                <taskdef resource="net/sf/antcontrib/antcontrib.properties" classpathref="maven.plugin.classpath"/>
                [...]
              </target>
            </configuration>
            <goals>
              <goal>run</goal>
            </goals>
          </execution>
        </executions>
        <dependencies>
          <dependency>
            <groupId>ant-contrib</groupId>
            <artifactId>ant-contrib</artifactId>
            <version>1.0b3</version>
            <exclusions>
              <exclusion>
                <groupId>ant</groupId>
                <artifactId>ant</artifactId>
              </exclusion>
            </exclusions>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>
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