maven输出中的“<<<”、“>>>”和“---”是什么意思？答案

【问题标题】：What is the meaning of "<<<", ">>>", and "---" in maven output?maven输出中的“<<<”、“>>>”和“---”是什么意思？
【发布时间】：2015-04-03 17:15:43
【问题描述】：

这是我项目mvn install 中的代表性示例：

[INFO]                                                                       
[INFO] ------------------------------------------------------------------------
[INFO] Building MyProject REST 1.8.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-enforcer-plugin:1.3.1:enforce (enforce-project-rules) @ myproject-rest ---
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:unpack-dependencies (unpack-shared-resources) @ myproject-rest ---
[INFO] swagger-ui-1.4.1.jar already exists in destination.
[INFO] 
[INFO] >>> maven-javadoc-plugin:2.9.1:javadoc (generate-service-docs) @ myproject-rest >>>
[INFO] 
[INFO] --- maven-enforcer-plugin:1.3.1:enforce (enforce-project-rules) @ myproject-rest ---
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:unpack-dependencies (unpack-shared-resources) @ myproject-rest ---
[INFO] swagger-ui-1.4.1.jar already exists in destination.
[INFO] 
[INFO] <<< maven-javadoc-plugin:2.9.1:javadoc (generate-service-docs) @ myproject-rest <<<
[INFO] 
[INFO] --- maven-javadoc-plugin:2.9.1:javadoc (generate-service-docs) @ myproject-rest ---
[INFO] Skipping javadoc generation
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ myproject-rest ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ myproject-rest ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ myproject-rest ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 2 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ myproject-rest ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-surefire-plugin:2.17:test (default-test) @ myproject-rest ---
[INFO] Tests are skipped.

有些行的前缀和后缀是“>>”，有些是“---”。它们是什么意思？

【问题讨论】：

标签： maven maven-3 maven-javadoc-plugin

【解决方案1】：

--- 介绍了一个 Maven 插件目标的执行，但以下情况除外。

>>> 引入了一个 Maven 插件目标的执行，该目标分叉了自己的生命周期。

<<< 标志着分叉生命周期的结束。

【讨论】：