Maven tomcat7:run 中 java.util.logging 处理程序的 ClassNotFoundException

我已按照 BIRT 常见问题解答了解有关获取BIRT 的日志记录(似乎基于 java.util.logging)重定向到 log4j，这是我项目的标准.

I have followed the BIRT FAQ in regard to getting BIRT's logging (which seems to be based on java.util.logging) redirected to log4j, which is my project's standard.

我随后制作了一个 BIRT 记录器，如下所示:

I've subsequently made a BIRT logger like so:

public class BirtLogger extends Handler {
    private final Logger log = Logger.getLogger(BirtLogger.class);

    @Override
    public void publish(LogRecord record) {
        Level level = record.getLevel();
        String message = record.getMessage();
        if (Level.SEVERE.equals(level)) {
            log.fatal(message);
        }
        else if (Level.INFO.equals(level)) {
            log.info(message);
        }
        else if (Level.WARNING.equals(level)) {
            log.warn(message);
        }
    }
...

我的 logging.properties 如下所示:

And my logging.properties looks as follows:

#logging configuration for BIRT
handlers=com.totaalsoftware.fieldtracker.report.BirtLogger

我在三个地方使用这个配置:

I am using this configuration in three places:

1. Eclipse --> 工作正常
2. Tomcat --> 工作正常
3. org.apache.tomcat.maven:tomcat7-maven-plugin:2.0 --> 不工作

1. Eclipse --> works just fine
2. Tomcat --> works just fine
3. org.apache.tomcat.maven:tomcat7-maven-plugin:2.0 --> not working

后者在启动时给出以下错误信息:

The latter gives the following error message upon startup:

java.lang.ClassNotFoundException: com.totaalsoftware.fieldtracker.report.BirtLogger
java.lang.ClassNotFoundException: com.totaalsoftware.fieldtracker.report.BirtLogger
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
        at java.util.logging.LogManager$3.run(LogManager.java:418)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.util.logging.LogManager.loadLoggerHandlers(LogManager.java:405)
        at java.util.logging.LogManager.initializeGlobalHandlers(LogManager.java:1076)
        at java.util.logging.LogManager.access$1100(LogManager.java:148)
        at java.util.logging.LogManager$RootLogger.getHandlers(LogManager.java:1159)
        at java.util.logging.Logger.log(Logger.java:521)
        at java.util.logging.Logger.doLog(Logger.java:543)
        at java.util.logging.Logger.logp(Logger.java:659)
        at org.apache.juli.logging.DirectJDKLog.log(DirectJDKLog.java:183)
        at org.apache.juli.logging.DirectJDKLog.info(DirectJDKLog.java:126)
        at org.apache.catalina.core.ApplicationContext.log(ApplicationContext.java:710)
        at org.apache.catalina.core.ApplicationContextFacade.log(ApplicationContextFacade.java:298)
        at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:442)
        at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:133)
        at javax.servlet.GenericServlet.init(GenericServlet.java:160)
        at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266)
        at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1185)
        at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1080)
        at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5027)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)

然而，我确实相信这个​​缺失"的类在应用程序的类路径上.但是对于tomcat7 Maven 插件可能有一些我还没有完全掌握的类加载特性......

I do believe however, that this "missing" class is on the application's classpath. But there may be some classloading specialties for the tomcat7 Maven plugin that I haven't quite grasped yet...

我为此在谷歌上搜索了很多，找到了一堆假设"的解决方案，但对我没有任何帮助，此时我已经没有想法了.非常感谢您的帮助.

I googled quite a bit for this, found a bunch of "supposed" solutions that didn't help me at all, and I'm out of ideas at this point. Your help would be much appreciated.