Question

我已经实现了一个Checkstyle Listener。它之前有用，（我认为5.0测试版发布），但是现在（5.0版），checkstyle失败并带有以下CallStack

  Unable to create Checker: cannot initialize module de.xyz.toxicity.TeamcityListener - Unable to instantiate de.xyz.toxicity.TeamcityListener
  com.puppycrawl.tools.checkstyle.api.CheckstyleException: cannot initialize module de.xyz.toxicity.TeamcityListener - Unable to instantiate de.xyz.toxicity.TeamcityListener
    at com.puppycrawl.tools.checkstyle.Checker.setupChild(Checker.java:177)
    at com.puppycrawl.tools.checkstyle.api.AutomaticBean.configure(AutomaticBean.java:207)
    at com.puppycrawl.tools.checkstyle.Main.createChecker(Main.java:138)
    at com.puppycrawl.tools.checkstyle.Main.main(Main.java:115)
  Caused by: com.puppycrawl.tools.checkstyle.api.CheckstyleException: Unable to instantiate de.xyz.toxicity.TeamcityListener
    at com.puppycrawl.tools.checkstyle.PackageObjectFactory.createModule(PackageObjectFactory.java:156)
    at com.puppycrawl.tools.checkstyle.Checker.setupChild(Checker.java:152)
    ... 3 more
  Caused by: com.puppycrawl.tools.checkstyle.api.CheckstyleException: Unable to instantiate de.xyz.toxicity.TeamcityListenerCheck
    at com.puppycrawl.tools.checkstyle.PackageObjectFactory.doMakeObject(PackageObjectFactory.java:99)
    at com.puppycrawl.tools.checkstyle.PackageObjectFactory.createModule(PackageObjectFactory.java:153)
    ... 4 more

我的配置文件看起来像这样

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.2//EN" "http://www.puppycrawl.com/dtds/configuration_1_2.dtd">

<module name="Checker">
<property name="severity" value="warning"/>
<module name="de.xyz.toxicity.TeamcityListener" />
    <module name="FileLength">
        <property name="max" value="500"/>
</module>

<module name="TreeWalker">
    <module name="FileContentsHolder"/>

    <module name="AnonInnerLength">
        <property name="max" value="35"/>
    </module>
    // ... more modules like this follow
</module>
</module>

当我从配置中删除自己的侦听器时，一切正常。

让我感到困惑的是：为什么checkstyle正在寻找TeamcityListenerCheck类？这样的课程不存在。我需要它吗？它应该是什么样的？

Answer 1

愚蠢的我......这是一个简单的类路径问题。

Answer 2

您能否提供有关类路径问题的更多信息？我遇到了同样的问题。当我使用sun_checks.xml在ANT中运行Checkstyle时......没有问题。当我添加我的custom_check.xml时，我会看到相同的错误消息。当你说Classpath是指环境类路径，如％CLASSPATH％，还是指ANT文件中的类路径设置？

我的ANT文件设置如下：

<taskdef resource="checkstyletask.properties">
        <classpath>
                <pathelement location="\bin"/> 
                <pathelement location="\lib"/> 
                <!--<pathelement location="C:ant\lib\myCSCode.jar"/> -->
                <pathelement location="C:\checkstyle-5.5\checkstyle-5.5-all.jar"/>
        </classpath>
</taskdef>

为什么Checkstyle会尝试创建一个Check for my Listener

2 个答案: