maven 打包异常

执行 Maven install 时报错：

 Failed to execute goalorg.apache.maven.plugins:maven-gpg-plugin:1.4:sign (sign-artifacts)on project openstack-java-sdk: Cannot obtain passphrase in batchmode -> [Help 1]

如下：

[INFO] BUILD FAILURE
[INFO]------------------------------------------------------------------------
[INFO] Total time: 0.970s
[INFO] Finished at: Tue Mar 04 14:06:04 CST 2014
[INFO] Final Memory: 7M/87M
[INFO]------------------------------------------------------------------------
[ERROR] Failed to execute goalorg.apache.maven.plugins:maven-gpg-plugin:1.4:sign (sign-artifacts)on project openstack-java-sdk: Cannot obtain passphrase in batchmode -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Mavenwith the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debuglogging.
[ERROR]
[ERROR] For more information about the errors and possiblesolutions, please read the following articles:
[ERROR] [Help 1]http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

原因： 使用的版本是maven3.X,其执行maven-ant-plugin的行为和maven2.x有一定的不同，需要引入pluginManagement

解决办法：在pom.xml中引入：

之前的内容：

<build>
   <plugins>
       <plugin></plugin>
       ...       
       <plugin></plugin>
   </plugins>
</build>

修改后的内容：

<build>
   <pluginManagement>
       <plugins>
          <plugin></plugin>
          ...  
         <plugin></plugin>
        </plugins>
    </pluginManagement>
</build>