我正在编写本质上是我的第一个 maven 插件,所以这可能只是缺乏谷歌技能,但这里有。
我正在使用 maven-plugin-plugin 创建插件
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-plugin-plugin</artifactId>
<version>3.5.2</version>
<executions>
<execution>
<id>default-descriptor</id>
<phase>process-classes</phase>
</execution>
</executions>
</plugin>
我正在使用 Maven 版本 3.5.2。
插件项目构建良好,但是当我尝试在另一个项目中使用它时,它会因以下错误而失败:
Caused by: java.lang.ClassNotFoundException: org.sonatype.aether.graph.Dependency
at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass (SelfFirstStrategy.java:50)
at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass (ClassRealm.java:271)
....(Lots of google.inject stuff)....
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo (DefaultMavenPluginManager.java:519)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:121)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:309)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:194)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:107)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:955)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
经过一番谷歌搜索后,我发现了这个我不完全理解的 stackoverflow 帖子,但我确实查看了错误报告并更改了我的依赖插件版本(在插件项目和消费者项目中,因为我不知道我在做什么: ) )
错误仍然以不变的形式存在。错误发生在我的插件运行的 generatesources 阶段,删除插件会使错误消失,所以我相当肯定我的插件是罪魁祸首。
有人可以简单地解释发生了什么,并帮助我解决问题吗?非常感谢您。
这是整个插件POM
<project>
<modelVersion>4.0.0</modelVersion>
<groupId>...</groupId>
<artifactId>...</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>maven-plugin</packaging>
<name>...</name>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>3.5.2</version>
</dependency>
<!-- dependencies to annotations -->
<dependency>
<groupId>org.apache.maven.plugin-tools</groupId>
<artifactId>maven-plugin-annotations</artifactId>
<version>3.5.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-core</artifactId>
<version>3.5.2</version>
</dependency>
<dependency>
<groupId>org.apache.maven.shared</groupId>
<artifactId>maven-dependency-tree</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>org.alfresco</groupId>
<artifactId>alfresco-data-model</artifactId>
<version>5.1.g</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-project</artifactId>
<version>2.2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.squareup</groupId>
<artifactId>javapoet</artifactId>
<version>1.11.1</version>
</dependency>
<dependency>
<artifactId>junit</artifactId>
<groupId>junit</groupId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.9</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-plugin-plugin</artifactId>
<version>3.5.2</version>
<executions>
<execution>
<id>default-descriptor</id>
<phase>process-classes</phase>
</execution>
</executions>
</plugin>
</plugins>
</build>
编辑:我尝试添加
<dependency>
<groupId>org.sonatype.aether</groupId>
<artifactId>aether-api</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>org.sonatype.aether</groupId>
<artifactId>aether-util</artifactId>
<version>1.8</version>
</dependency>
但问题仍然存在。我也尝试将它添加到两个项目中。结果相同。