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org/springframework/boot/autoconfigure/BackgroundPreinitializer$MBeanFactoryInitializer
java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [org.springframework.boot.autoconfigure.BackgroundPreinitializer$MBeanFactoryInitializer]. 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:1353)	at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1341)	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1206)	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167)	at org.springframework.boot.autoconfigure.BackgroundPreinitializer$1.run(BackgroundPreinitializer.java:61)	at java.lang.Thread.run(Unknown Source)