< pluginManagement>标签会导致“找不到符号"在Maven2上
问题描述：
我有一个pom.xml文件，该文件具有以下结构:
I have a pom.xml file that has the following structure:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<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>
<parent>
<groupId>someParentGroupId</groupId>
<artifactId>someParentArtifactId</artifactId>
<version>someParentVersionId</version>
</parent>
<artifactId>...</artifactId>
<name>...</name>
<packaging>war</packaging>
<properties>
<aspectj.version>1.6.12</aspectj.version>
<roo.version>1.2.2.RELEASE</roo.version>
<spring.version>3.1.0.RELEASE</spring.version>
<camel.version>2.10-SNAPSHOT</camel.version>
<spring-security.version>3.1.0.RELEASE</spring-security.version>
</properties>
<repositories>
<repository>
<id>someRepoId</id>
<name>someRepoName</name>
<url>someRepoURL</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>somePluginRepoId</id>
<name>somePluginRepoName</name>
<url>somePluginRepoURL</url>
</pluginRepository>
</pluginRepositories>
<dependencies>
<dependency>
<groupId>someDependencyGroupId</groupId>
<artifactId>someDependencyArtifactId</artifactId>
<version>someDependencyVersion</version>
<scope>someDependencyScope</scope>
</dependency>
</dependencies>
<build>
<!-- <pluginManagement> -->
<plugins>
<plugin>
<groupId>somePluginGroupId</groupId>
<artifactId>somePluginArtifactId</artifactId>
<version>somePluginVersionId</version>
</plugin>
</plugins>
<!-- </pluginManagement> -->
</build>
</project>
当标记被注释时，我可以毫无问题地运行mvn install，但是Eclipse在pom.xml中出错了！
When I have the tag commented, I can run mvn install without problems, but Eclipse goes coconuts with errors in my pom.xml!
Plugin execution not covered by lifecycle configuration: org.codehaus.mojo:aspectj-maven-plugin:1.2:compile (execution: default, phase: process-sources)
Plugin execution not covered by lifecycle configuration: org.codehaus.mojo:aspectj-maven-plugin:1.2:test-compile (execution: default, phase: process-test-sources)
但是，如果我在所有Eclipse项目中添加了没有错误的标记，但是我无法运行mvn install！这是运行mvn -e install
If however, I add the tag I have no errors in any of my Eclipse projects, but I cannot run mvn install ! Here is part of the output from running mvn -e install
/home/pedro/dss-project/dss/dss-server/src/main/java/net/jnd/thesis/domain/SessionCondition.java:[79,9] cannot find symbol
symbol : method getValue()
location: class net.jnd.thesis.domain.SessionCondition
/home/pedro/dss-project/dss/dss-server/src/main/java/net/jnd/thesis/web/AdminController.java:[61,5] cannot find symbol
symbol : method setValueRaw(java.lang.String)
location: class net.jnd.thesis.domain.Event
[INFO] Trace
org.apache.maven.BuildFailureException: Compilation failure
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:715)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:622)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.plugin.CompilationFailureException: Compilation failure
at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:656)
at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
... 17 more
我该如何解决?
整个 pom.xml 文件可在此处查看:
The entire pom.xml file can be seen here:
答
如果使用pluginManagement，则主要是为列出的插件设置/配置内容，而不是必须执行，除了默认情况下绑定到阶段的插件(例如maven-compiler-plugin例如).
If you use pluginManagement, you mainly do setting/config stuff for the listed plugins and not execute them necessarily except for plugins that bind to a phase by default (like the maven-compiler-plugin e.g.).
父pom中的pluginManagement通常用于为所有子项设置插件...
The pluginManagement in a parent pom is often used to set up the plugins for all children ...
因此，似乎(至少)您的一个插件(aspectj-maven-plugin?)需要在pluginManagement-tag之外的build-plugins-section中列出，以实现其目标.
So it seems that (at least) one of your plugins (aspectj-maven-plugin?) needs to be listed in the build-plugins-section outside the pluginManagement-tag to get it's goals executed.
尝试做某事:
<build>
<pluginManagement>
<plugins>
...
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<version>1.2</version>
<!-- NB: do not use 1.3 or 1.3.x due to MASPECTJ-90 and do not use 1.4
due to declare parents issue -->
<dependencies>
<!-- NB: You must use Maven 2.0.9 or above or these are ignored (see
MNG-2972) -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${aspectj.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjtools</artifactId>
<version>${aspectj.version}</version>
</dependency>
</dependencies>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
<configuration>
<outxml>true</outxml>
<aspectLibraries>
<aspectLibrary>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</aspectLibrary>
</aspectLibraries>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
</plugin>
</plugins>
...
</build>
编辑 另外，您必须告诉eclipse m2e插件，有些目标(编译/测试-编译)与默认配置不符:
EDIT Additionally you have to tell the eclipse m2e plugin that there are some goals (compile/test-compile) that don't match it's default configuration:
<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.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<versionRange>[1.2,)</versionRange>
<goals>
<goal>compile</goal>
<goal>test-compile</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
...