Artifact尚未打包-Maven-Dependency-plugin [英] Artifact has not been packaged yet - maven-dependency-plugin
问题描述
当我构建一个多模块Maven项目(使用mvn clean compile)时，其中一个依赖项(构建反应器的一部分)被使用dependency:copy复制到另一个依赖项中，然后maven抱怨了以下错误.
Artifact has not been packaged yet. When used on reactor artifact, copy should be executed after packaging: see MDEP-187 is thrown
这很好，Maven无法复制依赖的jar，因为它尚未打包，并且必须从本地项目而不是从存储库中解决依赖.
可以说，正在使用dependency:copy目标将项目A复制到项目B中.
现在，如果我将项目导入到eclipse中，并且设置了生命周期映射，从而在项目A上执行了maven-jar-plugin(这意味着打包了A)，那么项目B仍然会抱怨同样的错误.我该如何摆脱这一点.我不能忽略dependency:在m2e生命周期中进行复制，因为它是构建过程中的关键阶段.
ProjectA的pom文件:
<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>
<artifactId>projecta</artifactId>
<packaging>jar</packaging>
<parent>
<groupId>com.coderplus.tests</groupId>
<artifactId>projectparent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<versionRange>[2.4,)</versionRange>
<goals>
<goal>jar</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
项目B的pom文件
<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>
<artifactId>projectb</artifactId>
<packaging>jar</packaging>
<parent>
<groupId>com.coderplus.tests</groupId>
<artifactId>projectparent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.8</version>
<executions>
<execution>
<id>copy-plugins</id>
<phase>compile</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>${project.groupId}</groupId>
<artifactId>projecta</artifactId>
<version>${project.version}</version>
<overWrite>true</overWrite>
<outputDirectory>${project.build.directory}/classes/jars</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<versionRange>[2.8,)</versionRange>
<goals>
<goal>copy-dependecies</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute/>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
和包装这2个模块的Parent pom
<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.coderplus.tests</groupId>
<artifactId>projectparent</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<modules>
<module>projecta</module>
<module>projectb</module>
</modules>
</project>
我需要一个ProjectB的jar才能将ProjectA的jar包含在 jars 目录中(这是本地框架的自定义类加载器部分所必需的)
如果启用了从工作区项目解析依赖项"设置，则使用m2eclipse将artifactItems或依赖项解析为相应工作区项目的outputDirectory.这是我的问题中出现错误的根本原因.
我最终为该插件分叉了现有的m2e配置器，以便它可以从存储库中获取这些依赖项/工件项，而不是从工作区项目的outputDirectories中进行选择.
尽管这可以用我做过的一些测试来完成，但它仍在进行中，如果有人想提供帮助或贡献，则GitHub URL是
https://github.com/coderplus/m2e-maven-dependency-plugin
When I build a multi module maven project(using mvn clean compile) where one dependency(part of the build reactor) is copied into another using dependency:copy, then maven complains with the below error.
Artifact has not been packaged yet. When used on reactor artifact, copy should be executed after packaging: see MDEP-187 is thrown
This is perfectly fine, Maven can't copy the dependent jar because it has not been packaged yet and the dependency has to be resolved from the local project and not from the repository.
Lets say project A is being copied into project B using the dependency:copy goal.
Now if I import the projects into eclipse,with the lifecycle mapping set in such a way that the maven-jar-plugin is executed on project A(which means that A is packaged), still project B complains with the same error. How can I get rid of this.I can't ignore dependency:copy in the m2e lifecycle as it's a crucial phase in the build.
ProjectA's pom file :
<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>
<artifactId>projecta</artifactId>
<packaging>jar</packaging>
<parent>
<groupId>com.coderplus.tests</groupId>
<artifactId>projectparent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<versionRange>[2.4,)</versionRange>
<goals>
<goal>jar</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
Project B's pom file
<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>
<artifactId>projectb</artifactId>
<packaging>jar</packaging>
<parent>
<groupId>com.coderplus.tests</groupId>
<artifactId>projectparent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.8</version>
<executions>
<execution>
<id>copy-plugins</id>
<phase>compile</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>${project.groupId}</groupId>
<artifactId>projecta</artifactId>
<version>${project.version}</version>
<overWrite>true</overWrite>
<outputDirectory>${project.build.directory}/classes/jars</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<versionRange>[2.8,)</versionRange>
<goals>
<goal>copy-dependecies</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute/>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
and the Parent pom wrapping these 2 modules
<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.coderplus.tests</groupId>
<artifactId>projectparent</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<modules>
<module>projecta</module>
<module>projectb</module>
</modules>
</project>
I need a ProjectB's jar to contain ProjectA's jar in the jars directory(This is required by a custom class-loader part of a home-grown framework)
With m2eclipse, the artifactItems or dependencies will be resolved to the outputDirectory of the corresponding workspace project if the Resolve dependencies from workspace Projects setting is turned on. This is the root cause for the error in my question.
I ended up forking the existing m2e configurator for this plugin so that it can fetch these dependencies/artifactItems from the respository instead of picking it from the workspace project's outputDirectories .
Though this works with few tests which I had done, it is pretty much a work in progress and in case someone wants to help or contribute, the GitHub URL is
https://github.com/coderplus/m2e-maven-dependency-plugin
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