在Maven中为特定插件禁用并行构建

Question

我使用带有-T选项的maven构建项目。 有时构建会因随机的checkstyle错误而失败。

是否可以为特定插件（ checkstyle ）禁用-T选项并并行阻止该插件的执行？

以防万一附加stacktrace：

[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

要么

[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

截至6.11版的Checkstyle甚至没有简单的线程安全性。 Javadoc检查使用的静态缓存在单个JVM中的所有Checkstyle执行之间共享。

从版本6.11开始，我已将静态缓存替换为线程本地缓存，该速度同样快，但具有基本的线程安全性。 可以在Maven和Checkstyle中使用-T选项。