ConsoleLoggerManager.getLoggerForComponent 在启动 Fitnesse

问题描述

我正在将 maven-classpath-plugin 集成到我的 fitnesse 项目中，并在添加具有以下值的 plugins.properties 之后 SymbolTypes = fitnesse.wikitext.widgets.MavenClasspathSymbolType

我在启动项目时收到 NullPointerException。

请在pom.xml

中找到下面的配置

        <profile>
            <id>fitnesse</id>
            <build>
                <plugins>
                    <plugin>
                        <artifactId>maven-antrun-plugin</artifactId>
                        <version>1.6</version>
                        <executions>
                            <execution>
                                <id>start-fitnesse</id>
                                <phase>test</phase>
                                <configuration>
                                    <tasks>
                                        <echo taskname="fitnesse" message="Starting fitnesse..."/>
                                        <java classname="fitnesseMain.fitnesseMain"
                                              classpathref="maven.runtime.classpath"
                                              fork="true">
                                            <arg line="-p 9001"/>
                                            <arg line="-d ."/>
                                        </java>
                                    </tasks>
                                </configuration>
                                <goals>
                                    <goal>run</goal>
                                </goals>
                            </execution>
                        </executions>
                    </plugin>
                </plugins>
            </build>
            <dependencies>
                <dependency>
                    <groupId>org.fitnesse.plugins</groupId>
                    <artifactId>maven-classpath-plugin</artifactId>
                    <version>1.6</version>
                    <scope>runtime</scope>
                </dependency>
            </dependencies>
        </profile>

下面是我得到的异常

fitnesse.components.ComponentInstantiationException: Unable to instantiate component for type fitnesse.wikitext.widgets.MavenClasspathSymbolType
        at fitnesse.components.ComponentFactory.createComponent(ComponentFactory.java:81)
        at fitnesse.plugins.PropertyBasedpluginFeatureFactory$8.register(PropertyBasedpluginFeatureFactory.java:152)
        at fitnesse.plugins.PropertyBasedpluginFeatureFactory.forEachClass(PropertyBasedpluginFeatureFactory.java:144)
        at fitnesse.plugins.PropertyBasedpluginFeatureFactory.forEachObject(PropertyBasedpluginFeatureFactory.java:150)
        at fitnesse.plugins.PropertyBasedpluginFeatureFactory.registerSymbolTypes(PropertyBasedpluginFeatureFactory.java:75)
        at fitnesse.plugins.PluginsLoader.loadSymbolTypes(PluginsLoader.java:101)
        at fitnesse.ContextConfigurator.makefitnesseContext(ContextConfigurator.java:187)
        at fitnesseMain.fitnesseMain.launchfitnesse(fitnesseMain.java:72)
        at fitnesseMain.fitnesseMain.launchfitnesse(fitnesseMain.java:59)
        at fitnesseMain.fitnesseMain.main(fitnesseMain.java:39)
      Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at fitnesse.components.ComponentFactory.createComponent(ComponentFactory.java:78)
        ... 9 more
      Caused by: java.lang.NullPointerException
        at org.codehaus.plexus.logging.console.ConsoleLoggerManager.getLoggerForComponent(ConsoleLoggerManager.java:134)
        at org.codehaus.plexus.logging.AbstractLoggerManager.getLoggerForComponent(AbstractLoggerManager.java:28)
        at fitnesse.wikitext.widgets.MavenClasspathExtractor.<init>(MavenClasspathExtractor.java:37)
        at fitnesse.wikitext.widgets.MavenClasspathSymbolType.<init>(MavenClasspathSymbolType.java:21)
        ... 14 more
      Java Result: 1

在查看 ConsoleLoggerManager.java 的源代码时，我发现 NPE 是针对 private Map loggers 的，当 ConsoleLoggerManager 通过调用 initialize() 方法或它的参数化构造函数。

我在这里遗漏了什么吗？

解决方法

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