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Custom logback appender throws

Tags:

logback

appender

As I have to log into a custom (single) DB table, I wrote a custom logback appender extending the logback DBAppender.

I have some Unit Tests which verify that the appender works correct, but as soon, as I whant to configure the appender in my webapplication, I get a ch.qos.logback.core.util.IncompatibleClassException. I don't know why this is happening. Has anybody had this Exception before?

versions:

logback-core    : 1.0.13
logback-classic : 1.0.13
slf4j-api       : 1.7.5

logback.xml

<?xml version="1.0" encoding="utf-8"?>
<configuration scan="true" debug="true" scanPeriod="10 seconds">

    <appender name="db" class="com.custom.common.logging.slf4j.Slf4jDbAppender">
        <connectionSource class="ch.qos.logback.core.db.JNDIConnectionSource">
            <jndiLocation>jdbc/logging</jndiLocation>
        </connectionSource>
    </appender>

    <root level="INFO">
        <appender-ref ref="db" />
    </root>

</configuration>

Exception:

2013-10-24 14:57:17 INFO    AppenderAction  About to instantiate appender of type [com.custom.common.logging.slf4j.LSlf4jDbAppender]
2013-10-24 14:57:17 ERROR   AppenderAction  Could not create an Appender of type [com.custom.common.logging.slf4j.LSlf4jDbAppender].
ch.qos.logback.core.util.IncompatibleClassException
    at ch.qos.logback.core.util.OptionHelper.instantiateByClassNameAndParameter(OptionHelper.java:62)
    at ch.qos.logback.core.util.OptionHelper.instantiateByClassName(OptionHelper.java:48)
    at ch.qos.logback.core.util.OptionHelper.instantiateByClassName(OptionHelper.java:35)
    at ch.qos.logback.core.joran.action.AppenderAction.begin(AppenderAction.java:54)
    at ch.qos.logback.core.joran.spi.Interpreter.callBeginAction(Interpreter.java:275)
    at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:147)
    at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:129)
    at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:50)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:149)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:135)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:99)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:49)
    at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:75)
    at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:148)
    at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:85)
    at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)
    at org.slf4j.LoggerFactory.bind(LoggerFactory.java:128)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:107)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:295)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:269)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:281)
    at org.apache.tiles.impl.BasicTilesContainer.<init>(BasicTilesContainer.java:71)
    at org.apache.tiles.factory.BasicTilesContainerFactory.instantiateContainer(BasicTilesContainerFactory.java:107)
    at org.apache.tiles.factory.BasicTilesContainerFactory.createContainer(BasicTilesContainerFactory.java:83)
    at org.springframework.web.servlet.view.tiles3.TilesConfigurer$SpringTilesContainerFactory.createContainer(TilesConfigurer.java:277)
    at org.apache.tiles.startup.AbstractTilesInitializer.createContainer(AbstractTilesInitializer.java:114)
    at org.apache.tiles.startup.AbstractTilesInitializer.initialize(AbstractTilesInitializer.java:64)
    at org.springframework.web.servlet.view.tiles3.TilesConfigurer.afterPropertiesSet(TilesConfigurer.java:252)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1545)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1483)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
    at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:4750)
    at com.sun.enterprise.web.WebModule.contextListenerStart(WebModule.java:550)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:5366)
    at com.sun.enterprise.web.WebModule.start(WebModule.java:498)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:917)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:901)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:733)
    at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:2019)
    at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1669)
    at com.sun.enterprise.web.WebApplication.start(WebApplication.java:109)
    at org.glassfish.internal.data.EngineRef.start(EngineRef.java:130)
    at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:269)
    at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:301)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
    at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
    at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
    at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
    at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:722)

2013-10-24 14:57:17 ERROR   String  ActionException in Action for tag [appender]
ch.qos.logback.core.joran.spi.ActionException: ch.qos.logback.core.util.IncompatibleClassException
    at ch.qos.logback.core.joran.action.AppenderAction.begin(AppenderAction.java:82)
    at ch.qos.logback.core.joran.spi.Interpreter.callBeginAction(Interpreter.java:275)
    at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:147)
    at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:129)
    at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:50)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:149)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:135)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:99)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:49)
    at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:75)
    at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:148)
    at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:85)
    at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)
    at org.slf4j.LoggerFactory.bind(LoggerFactory.java:128)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:107)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:295)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:269)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:281)
    at org.apache.tiles.impl.BasicTilesContainer.<init>(BasicTilesContainer.java:71)
    at org.apache.tiles.factory.BasicTilesContainerFactory.instantiateContainer(BasicTilesContainerFactory.java:107)
    at org.apache.tiles.factory.BasicTilesContainerFactory.createContainer(BasicTilesContainerFactory.java:83)
    at org.springframework.web.servlet.view.tiles3.TilesConfigurer$SpringTilesContainerFactory.createContainer(TilesConfigurer.java:277)
    at org.apache.tiles.startup.AbstractTilesInitializer.createContainer(AbstractTilesInitializer.java:114)
    at org.apache.tiles.startup.AbstractTilesInitializer.initialize(AbstractTilesInitializer.java:64)
    at org.springframework.web.servlet.view.tiles3.TilesConfigurer.afterPropertiesSet(TilesConfigurer.java:252)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1545)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1483)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
    at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:4750)
    at com.sun.enterprise.web.WebModule.contextListenerStart(WebModule.java:550)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:5366)
    at com.sun.enterprise.web.WebModule.start(WebModule.java:498)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:917)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:901)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:733)
    at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:2019)
    at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1669)
    at com.sun.enterprise.web.WebApplication.start(WebApplication.java:109)
    at org.glassfish.internal.data.EngineRef.start(EngineRef.java:130)
    at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:269)
    at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:301)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
    at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
    at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
    at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
    at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:722)
Caused by: ch.qos.logback.core.util.IncompatibleClassException
    at ch.qos.logback.core.util.OptionHelper.instantiateByClassNameAndParameter(OptionHelper.java:62)
    at ch.qos.logback.core.util.OptionHelper.instantiateByClassName(OptionHelper.java:48)
    at ch.qos.logback.core.util.OptionHelper.instantiateByClassName(OptionHelper.java:35)
    at ch.qos.logback.core.joran.action.AppenderAction.begin(AppenderAction.java:54)
    ... 80 more
like image 914
Matthias B Avatar asked Oct 24 '13 13:10

Matthias B

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1 Answers

I see this exception in a web project with jetty the first time. We had a multi module maven project. One sub module builds the web application (war) and another was responsible for starting the jetty server (which serves the war). Logback is used/defined only in our jetty module - all other modules use slf4j.

I think there are several classloaders and each of them can find own instances of the logback classes. Putting explicit provided dependencies to logback/slf4j into the webapp project solved this problem in our scenario:

    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-core</artifactId>
        <scope>provided</scope>
    </dependency>
like image 175
kiar Avatar answered Sep 20 '22 17:09

kiar
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