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POTomcat can't instantiate org.apache.log4j.varia.LevelMatchFilter class
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copied!<p>I'm trying to setup <code>log4j</code> on my web app. Web server is <code>Tomcat 7</code>. </p> <p>I'm getting the following exception:</p> <pre><code> log4j:ERROR Could not instantiate class [org.apache.log4j.varia.LevelMatchFilter ]. java.lang.ClassNotFoundException: org.apache.log4j.varia.LevelMatchFilter at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1711) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:186) at org.apache.log4j.helpers.Loader.loadClass(Loader.java:198) at org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:326) at org.apache.log4j.PropertyConfigurator.parseAppenderFilters(PropertyConfigurator.java:881) at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:812) at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:735) at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:615) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:502) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:547) at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:483) at org.apache.log4j.LogManager.<clinit>(LogManager.java:127) at org.apache.log4j.Logger.getLogger(Logger.java:104) at org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:262) at org.apache.commons.logging.impl.Log4JLogger.<init>(Log4JLogger.java:108) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:525) at org.apache.commons.logging.impl.LogFactoryImpl.createLogFromClass(LogFactoryImpl.java:1025) at org.apache.commons.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:844) at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:541) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:292) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:269) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:657) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:269) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 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) </code></pre> <p>I put <code>log4j.properties</code> in the <code>WEB-INF/classes</code> directory as many SO users suggested in other answers to other questions.</p> <p>I put <code>slf4j-api-1.7.5.jar</code>, <code>slf4j-log4j12-1.7.5.jar</code>, <code>log4j-1.2.16.jar</code> in the <code>WEB-INF/lib</code> directory.</p> <p>My properties file is the following:</p> <pre><code>log4j.rootLogger = INFO,infoAppender,errAppender log4j.appender.infoAppender=org.apache.log4j.DailyRollingFileAppender log4j.appender.infoAppender.File= D://logs//info//info.log log4j.appender.infoAppender.DatePattern='_'dd-MM-yyyy log4j.appender.infoAppender.layout=org.apache.log4j.PatternLayout log4j.appender.infoAppender.layout.conversionPattern=%d{dd-MM-yyyy HH:mm:ss} %5p %m%n log4j.appender.infoAppender.filter.infoFilter=org.apache.log4j.varia.LevelMatchFilter log4j.appender.infoAppender.filter.infoFilter.LevelToMatch=INFO log4j.appender.infoAppender.filter.infoFilter.AcceptOnMatch=true log4j.appender.infoAppender.filter.2=org.apache.log4j.varia.DenyAllFilter log4j.appender.errAppender=org.apache.log4j.DailyRollingFileAppender log4j.appender.errAppender.File= D://logs//error/err.log log4j.appender.errAppender.DatePattern='_'dd-MM-yyyy log4j.appender.errAppender.layout=org.apache.log4j.PatternLayout log4j.appender.errAppender.layout.conversionPattern=%d{dd-MM-yyyy HH:mm:ss} %5p %m%n log4j.appender.errAppender.filter.errFilter=org.apache.log4j.varia.LevelMatchFilter log4j.appender.errAppender.filter.errFilter.LevelToMatch=ERROR log4j.appender.errAppender.filter.errFilter.AcceptOnMatch=true log4j.appender.errAppender.filter.2=org.apache.log4j.varia.DenyAllFilter </code></pre> <p>I personally think that problem is in classpath-like issues but all .jar files and .properties file are in the correct place. At least, it's correct according to many related posts that I found.</p>

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