maven - 在 Maven 中禁用特定插件的并行构建

Question

我使用 ma​​ven 和 -T 选项构建我的项目。有时构建会因随机 checkstyle 错误而失败。

是否可以为特定插件(checkstyle)禁用-T选项并阻止并行执行该插件？

以防万一附加堆栈跟踪:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.16:check (validate) on project yyy-1: Execution validate of goal org.apache.maven.plugins:maven-checkstyle-plugin:2.16:check failed. NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.16:check (validate) on project yyy-1: Execution validate of goal org.apache.maven.plugins:maven-checkstyle-plugin:2.16:check failed.
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:224)
    ...
    at org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call(MultiThreadedBuilder.java:185)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    ...
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution validate of goal org.apache.maven.plugins:maven-checkstyle-plugin:2.16:check failed.
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
    ... 11 more
Caused by: java.lang.NullPointerException
    at com.puppycrawl.tools.checkstyle.checks.javadoc.AbstractJavadocCheck.visitToken(AbstractJavadocCheck.java:182)
    ...
    at com.puppycrawl.tools.checkstyle.Checker.process(Checker.java:265)
    at org.apache.maven.plugin.checkstyle.exec.DefaultCheckstyleExecutor.executeCheckstyle(DefaultCheckstyleExecutor.java:252)
    at org.apache.maven.plugin.checkstyle.CheckstyleViolationCheckMojo.execute(CheckstyleViolationCheckMojo.java:538)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
    ... 12 more

或

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.16:check (validate) on project xxx-2: You have 1 Checkstyle violation. -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.16:check (validate) on project xxx-2: You have 1 Checkstyle violation.
    ...
    at org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call(MultiThreadedBuilder.java:185)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    ...
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.maven.plugin.MojoFailureException: You have 1 Checkstyle violation.
    at org.apache.maven.plugin.checkstyle.CheckstyleViolationCheckMojo.execute(CheckstyleViolationCheckMojo.java:588)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
    ... 11 more

Answer 1

直到 6.11 版本的 Checkstyle 甚至没有简单的线程安全。 Javadoc 检查使用在单个 JVM 中所有 Checkstyle 执行共享的静态缓存。

从 6.11 版开始，我用线程本地缓存替换了静态缓存，它同样快，但提供了基本的线程安全性。它使得在 Maven 和 Checkstyle 中使用 -T 选项成为可能。