We use logback for the project and integrate Spring + Quartz
When shutdown the application in Tomcat7, always throws the exception details as follow

Exception in thread "schedulerFactory_Worker-6" java.lang.NoClassDefFoundError: ch/qos/logback/core/status/WarnStatus
at ch.qos.logback.classic.LoggerContext.noAppenderDefinedWarning(LoggerContext.java:175)
at ch.qos.logback.classic.Logger.callAppenders(Logger.java:267)
at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:442)
at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:396)
at ch.qos.logback.classic.Logger.debug(Logger.java:503)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:612)

We try to use log4j replace logback, it is work normally.

Spring version:3.2.2.RELEASE
Quartz version:2.2.1

OS:win7 64 Service Pack 1
JDK: 1.7_40
IDE: IDEA 11