执行命令mvn checkstyle:checkstyle
时出现以下错误:
An error has occurred in Checkstyle report generation.
...
Caused by: com.puppycrawl.tools.checkstyle.api.CheckstyleException: cannot initialize module TreeWalker - Unable to instantiate GenericIllegalRegexp
at com.puppycrawl.tools.checkstyle.Checker.setupChild(Checker.java:178)
at com.puppycrawl.tools.checkstyle.api.AutomaticBean.configure(AutomaticBean.java:184)
at org.apache.maven.plugin.checkstyle.DefaultCheckstyleExecutor.executeCheckstyle(DefaultCheckstyleExecutor.java:170)
at org.apache.maven.plugin.checkstyle.AbstractCheckstyleReport.executeReport(AbstractCheckstyleReport.java:259)
... 24 more
Caused by: com.puppycrawl.tools.checkstyle.api.CheckstyleException: Unable to instantiate GenericIllegalRegexp
at com.puppycrawl.tools.checkstyle.PackageObjectFactory.createModule(PackageObjectFactory.java:155)
at com.puppycrawl.tools.checkstyle.TreeWalker.setupChild(TreeWalker.java:161)
at com.puppycrawl.tools.checkstyle.api.AutomaticBean.configure(AutomaticBean.java:184)
at com.puppycrawl.tools.checkstyle.Checker.setupChild(Checker.java:157)
... 27 more
Caused by: com.puppycrawl.tools.checkstyle.api.CheckstyleException: Unable to instantiate GenericIllegalRegexpCheck
at com.puppycrawl.tools.checkstyle.PackageObjectFactory.doMakeObject(PackageObjectFactory.java:98)
at com.puppycrawl.tools.checkstyle.PackageObjectFactory.createModule(PackageObjectFactory.java:152)
... 30 more
我猜这个错误与使用旧版本的 checkstyle 创建的规则有关。
pom.xml 中的 checkstyle 插件配置为:
...
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>2.9.1</version>
<configuration>
<configLocation>checkstyle.xml</configLocation>
<headerLocation>LICENSE.txt</headerLocation>
</configuration>
</plugin>
...
是否有方法或工具可以迁移规则以使其与 checkstyle 5.5 兼容? (除了根据 checkstyle 文档概述每个规则的规则)
最佳答案
我已经设法通过修改规则的 xml 来消除该特定异常。
我已经替换:
<module name="GenericIllegalRegexp">
<property name="format" value="\s+$"/>
<property name="message" value="Line has trailing spaces."/>
<property name="ignoreComments" value="true"/>
</module>
与
<module name="RegexpSinglelineJava">
<property name="format" value="\s+$"/>
<property name="message" value="Line has trailing spaces."/>
<property name="ignoreComments" value="true"/>
</module>
希望我能帮助遇到同样问题的人。问候。
关于java - 运行 mvn checkstyle :checkstyle 时出错,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/12433466/