1. 环境说明

eclipse 2021-12R
maven 3.8.5

2 . 目标

在进行deploy的时候，调用一个在工程里面已经存在的ant脚本。ant脚本里面使用了ant-contrib-1.0b3.jar

3. 脚本

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  ... 省略
  <build>
        <sourceDirectory>src/main/java</sourceDirectory>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
            </resource>
        </resources>
        <testSourceDirectory>src/test/java</testSourceDirectory>
        <testResources>
            <testResource>
                <directory>src/test/resources</directory>
            </testResource>
        </testResources>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <!--
                    <release>1.8</release>
                    -->
                    <source>1.8</source>
                    <target>1.8</target>
                    <compilerVersion>1.8</compilerVersion>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.2.0</version>
                <configuration>
                    <archive>
                        <manifestFile>META-INF/MANIFEST.MF</manifestFile>
                        <manifest>
                            <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
                            <addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
                        </manifest>
                        <manifestEntries>
                            <Build-Time>${maven.build.timestamp}</Build-Time>
                            <XZ-Pub-Time>${maven.build.timestamp}</XZ-Pub-Time>
                        </manifestEntries>
                    </archive>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <version>3.1.0</version>
                <executions>
                    <execution>
                        <id>pack-eclipse-plugin</id>
                        <phase>deploy</phase>
                        <configuration>
                            <target name="pack_eclipse_plugin">
                                <echo>开始调用Ant脚本...</echo>
                                <!-- publish.ant和pom.xml是同一个目录下-->
                                <ant antfile="publish.ant" target="pack" />
                            </target>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
                <dependencies>
                    <dependency>
                        <groupId>org.apache.ant</groupId>
                        <artifactId>ant</artifactId>
                        <version>1.10.12</version>
                    </dependency>
                    <dependency>
                        <groupId>ant-contrib</groupId>
                        <artifactId>ant-contrib</artifactId>
                        <version>1.0b3</version>
                     </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>
    
    <distributionManagement>
        <repository>
                ... 省略
        </repository>
    </distributionManagement>
</project>

4. 出现的问题

... 省略
Caused by: java.lang.NoSuchMethodError: org.apache.tools.ant.util.FileUtils.getFileUtils()Lorg/apache/tools/ant/util/FileUtils;
   at org.apache.tools.ant.taskdefs.optional.ReplaceRegExp.<clinit> (ReplaceRegExp.java:127)
   at java.lang.Class.forName0 (Native Method)
   at java.lang.Class.forName (Class.java:264)
   at org.apache.tools.ant.Project.init (Project.java:269)
   at org.apache.maven.plugins.antrun.AntRunMojo.execute (AntRunMojo.java:285)
... 省略

原因：ant-contrib这个dependency依赖的ant是1.5及以上，如果不通过

<dependency>
    <groupId>org.apache.ant</groupId>
    <artifactId>ant</artifactId>
    <version>1.10.12</version>
</dependency>

这段声明ant的版本，会将ant1.5拉取下来，造成找不到方法。