在我的项目中,我使用两个源目录(通过 build-helper-maven-plugin)。我有一个课程同时出现在他们两个中。所以,当我尝试运行“mvn compile”时,我得到“Class is duplicated”错误。我无法删除其中一个文件 - 它们都必须存在,我需要通过调整 pom.xml 来解决这个问题。
我看过这些主题:
但解决方案对我不起作用。我意识到我无法使用 maven-compiler-plugin 部分指定文件的绝对路径 - 只能从源目录的根目录开始的相对路径。所以,我既可以排除它们,也可以同时包含它们。
POM.xml:
<project>
<modelVersion>4.0.0</modelVersion>
<artifactId>child-project</artifactId>
<packaging>war</packaging>
<name>child-project</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<parent>
<groupId>com.project</groupId>
<artifactId>project</artifactId>
<relativePath>../pom.xml</relativePath>
<version>1.0</version>
</parent>
<build>
<finalName>child-project</finalName>
<!-- First source directory. Contains A.java file i need to exclude-->
<sourceDirectory>${basedir}/src</sourceDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<!-- doesn't work
<excludes>
<exclude>${basedir}/src/com/project/A.java</exclude>
</excludes>
-->
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<executions>
<execution>
<phase>generate-sources</phase>
<goals><goal>add-source</goal></goals>
<configuration>
<sources>
<!-- Second source directory. Contains A.java file i need to include-->
<source>${custom-directory}/webapp/src</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
...
</plugins>
</build>
</project>