如何标记maven插件threadSafe

Question

我想使用@threadSafe 注释将maven-clean-plugin 标记为线程安全。谁能举个例子？

编辑：

升级到 maven 3.0.5 后，我的构建收到以下警告：（使用 teamcity 构建）

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] *****************************************************************Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] * Your build is requesting parallel execution, but project      *Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] * contains the following plugin(s) that are not marked as       *Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] * @threadSafe to support parallel building.                     *Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] * While this /may/ work fine, please look for plugin updates    *Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] * and/or request plugins be made thread-safe.                   *Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] * If reporting an issue, report it against the plugin in        *Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] * question, not against maven-core                              *Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] *****************************************************************Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] The following plugins are not marked @threadSafe in STRAW Main Application:Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] org.apache.maven.plugins:maven-clean-plugin:2.3Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] org.apache.maven.plugins:maven-install-plugin:2.2Agent time: 14:21:10

[18:51:10][com.dir.hay.straw:straw-parent] [WARNING] *****************************************************************

从 maven 文档中，我也明白 clean 插件是线程安全的。即使那样，我也会收到这个警告。所以，我想我错过了什么地方。

Answer 1

首先您尝试使用的原因是旧式 XDoclet 注释已被弃用，您应该 Java 5 annotations like this:

你想做什么？ maven-clean-plugin is already thread safe。您使用哪个版本的 maven-clean-plugin？

@Mojo( name = "WhatEver",
       threadSafe = true)
public class MyMojo
    extends AbstractMojo