java.lang.NoClassDefFoundError: org/apache/log4j/spi/ThrowableInformation

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java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [org.apache.log4j.spi.ThrowableInformation]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(
at org.apache.log4j.spi.LoggingEvent.(
at org.apache.log4j.Category.forcedLog(
at org.apache.log4j.Category.log(

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