ch.qos.logback.core.util.DynamicClassLoadingException: Failed to instantiate type com.yammer.metrics.logback.InstrumentedAppender

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This means you're missing a class that Java needs for this program. Check if you're not missing the jsr305-1.3.7.jar from your classpath, it's the jar that contains the class javax.annotation.Nullable.

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If JVM throws ClassNotFoundException the class is not found in classpath. It means that something is not configured correctly. So check the relevant class is in the classpath. If the class is packaged into a jar, the jar should also in the classpath.

Solutions on the web

via Coderanch by Mike London, 11 months ago
Failed to instantiate type com.yammer.metrics.logback.InstrumentedAppender
via Sonatype JIRA by Peter Lynch, 1 year ago
Failed to instantiate type com.yammer.metrics.logback.InstrumentedAppender
via QOS.ch JIRA by Janario Oliveira, 1 year ago
Failed to instantiate type br.com.tecsinapse.monitoring.logging.SmartSMTPAppender
via QOS.ch JIRA by Janario Oliveira, 1 year ago
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via Stack Overflow by morpheus
, 1 year ago
Failed to instantiate type net.kencochrane.raven.logback.SentryAppender
via GitHub by stefan-langenmaier
, 2 years ago
Failed to instantiate type org.eclipse.m2e.logback.appender.MavenConsoleAppender
ch.qos.logback.core.util.DynamicClassLoadingException: Failed to instantiate type com.yammer.metrics.logback.InstrumentedAppender
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
at ch.qos.logback.core.util.OptionHelper.instantiateByClassNameAndParameter(OptionHelper.java:61)
at ch.qos.logback.core.util.OptionHelper.instantiateByClassName(OptionHelper.java:49)
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:276)
at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:148)
at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:130)
at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:50)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:157)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:143)
at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:106)
at org.sonatype.nexus.log.internal.LogbackLogManager.reconfigure(LogbackLogManager.java:466)
at org.sonatype.nexus.log.internal.LogbackLogManager.configure(LogbackLogManager.java:317)
at org.sonatype.nexus.web.LogConfigListener.configureLogManager(LogConfigListener.java:59)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:977)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

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