M2E plugin execution not covered

從git上面clone一個項目到本地，經常會遇到

M2E plugin execution not covered的error，此error在eclipse的wiki上已經說明得很清楚了,我來寫一下我的了解。

http://wiki.eclipse.org/M2E_plugin_execution_not_covered

出錯原因：

m2eclipse會自動build pom.xml裡面的部分内容，然後project的配置是基于build 完pom.xml之後的。（按理來說，我們執行mvn指令，都是直接在shell中通過指令行去執行，不會在eclipse裡面對項目進行打包，釋出等）。不幸的是，m2eclipse有一個長久以來一直存在的bug，就是eclipse在做自動的build pom.xml時會經常無規律的報錯，好在m2eclipse提供了quickfix可以用。

1. 推薦的方案：為Plugin加一個configuration标簽如下，以做到讓eclipse去忽略這個plugin（這個不用自己寫，quickfix中選擇“permanently mark goal as ignored in eclipse”,注意此修改隻影響eclipse，不會影響項目的正常build）

<pluginManagement>  
<plugins>  
<plugin>  
 <groupId>org.eclipse.m2e</groupId>  
 <artifactId>lifecycle-mapping</artifactId>  
 <version>1.0.0</version>  
 <configuration>  
   <lifecycleMappingMetadata>  
     <pluginExecutions>  
       <pluginExecution>  
         <pluginExecutionFilter>  
           <groupId>some-group-id</groupId>  
           <artifactId>some-artifact-id</artifactId>  
           <versionRange>[1.0.0,)</versionRange>  
           <goals>  
             <goal>some-goal</goal>  
           </goals>  
         </pluginExecutionFilter>  
         <action>  
           <ignore />  
         </action>  
       </pluginExecution>  
     </pluginExecutions>  
   </lifecycleMappingMetadata>  
 </configuration>  
</plugin>  
</plugins>  
</pluginManagement>  
           

1. 增加configuration，裡面的execute是告訴eclipse當java類方式修改時是否執行action.這裡把它設為否。除非對這個plugin非常了解，的确可以設為false,否則不推薦用此方法。

<pluginManagement>  
<plugins>  
<plugin>  
 <groupId>org.eclipse.m2e</groupId>  
 <artifactId>lifecycle-mapping</artifactId>  
 <version>1.0.0</version>  
 <configuration>  
   <lifecycleMappingMetadata>  
     <pluginExecutions>  
       <pluginExecution>  
         <pluginExecutionFilter>  
           <groupId>some-group-id</groupId>  
           <artifactId>some-artifact-id</artifactId>  
           <versionRange>[1.0.0,)</versionRange>  
           <goals>  
             <goal>some-goal</goal>  
           </goals>  
         </pluginExecutionFilter>  
         <action>  
           <execute >  
             <runOnIncremental>false</runOnIncremental>  
           </execute >  
         </action>  
       </pluginExecution>  
     </pluginExecutions>  
   </lifecycleMappingMetadata>  
 </configuration>  
</plugin>  
</plugins>  
</pluginManagement>  
           

1. 在eclipse裡面設定，首先在Windows -> Preferences -> Maven -> Lifecycle mapping裡面選擇change mapping file location，在裡面配置需要ignore的goal.

<?xml version="1.0" encoding="UTF-8"?>  
<lifecycleMappingMetadata>  
    <pluginExecutions>  
        <pluginExecution>  
            <pluginExecutionFilter>  
                <groupId>org.codehaus.mojo</groupId>  
                <artifactId>buildnumber-maven-plugin</artifactId>  
                <goals>  
                    <goal>create-timestamp</goal>  
                </goals>  
                <versionRange>[0.0,)</versionRange>  
            </pluginExecutionFilter>  
            <action>  
                <ignore />  
            </action>  
        </pluginExecution>  
  
        <pluginExecution>  
            <pluginExecutionFilter>  
                <groupId>org.apache.maven.plugins</groupId>  
                <artifactId>maven-dependency-plugin</artifactId>  
                <goals>  
                    <goal>list</goal>  
                </goals>  
                <versionRange>[0.0,)</versionRange>  
            </pluginExecutionFilter>  
            <action>  
                <ignore />  
            </action>  
        </pluginExecution>  
  
        <pluginExecution>  
            <pluginExecutionFilter>  
                <groupId>org.zeroturnaround</groupId>  
                <artifactId>jrebel-maven-plugin</artifactId>  
                <goals>  
                    <goal>generate</goal>  
                </goals>  
                <versionRange>[0.0,)</versionRange>  
            </pluginExecutionFilter>  
            <action>  
                <ignore />  
            </action>  
        </pluginExecution>  
  
        <pluginExecution>  
            <pluginExecutionFilter>  
                <groupId>org.codehaus.mojo</groupId>  
                <artifactId>gwt-maven-plugin</artifactId>  
                <goals>  
                    <goal>compile</goal>  
                </goals>  
                <versionRange>[0.0,)</versionRange>  
            </pluginExecutionFilter>  
            <action>  
                <ignore />  
            </action>  
        </pluginExecution>  
  
        <pluginExecution>  
            <pluginExecutionFilter>  
                <groupId>org.apache.maven.plugins</groupId>  
                <artifactId>maven-dependency-plugin</artifactId>  
                <goals>  
                    <goal>copy-dependencies</goal>  
                    <goal>unpack</goal>  
                </goals>  
                <versionRange>[0.0,)</versionRange>  
            </pluginExecutionFilter>  
            <action>  
                <ignore />  
            </action>  
        </pluginExecution>  
  
    </pluginExecutions>  
</lifecycleMappingMetadata>  
           

官網解釋 ： https://www.eclipse.org/m2e/documentation/m2e-execution-not-covered.html