05-Apr-2021 15:38:25.517 INFO [java-sdk-http-connection-reaper] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [ch.qos.logback.classic.spi.ThrowableProxy]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
 java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [ch.qos.logback.classic.spi.ThrowableProxy]. 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(WebappClassLoaderBase.java:1372)
        at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1360)
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1219)
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1180)
        at ch.qos.logback.classic.spi.LoggingEvent.<init>(LoggingEvent.java:119)
        at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:419)
        at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383)
        at ch.qos.logback.classic.Logger.log(Logger.java:765)
        at org.apache.commons.logging.LogAdapter$Slf4jLocationAwareLog.debug(LogAdapter.java:470)
        at com.amazonaws.http.IdleConnectionReaper.run(IdleConnectionReaper.java:190)
위와 같은 오류가 발생 할 경우 tomcat destroy 시 logback을 종료시키는 코드를 넣어주어야 합니다.
import ch.qos.logback.classic.LoggerContext;
import org.slf4j.LoggerFactory;

public class ShutdownHookConfiguration {

    public void destroy() {

        LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
        loggerContext.stop();

    }
}
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;

@SpringBootApplication
public class MyApplication {

    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }

    @Bean(destroyMethod = "destroy")
    public ShutdownHookConfiguration shutdownHookConfiguration() {
        return new ShutdownHookConfiguration();
    }

}

 

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