An error occurs when Tomcat starts loading the spring configuration file. The class getbooksrequest cannot be found. After investigation, this class actually exists. Later, it was found that there was another sentence in the log:   This is very likely to create a memory leak. I suspect there is not enough memory. After looking at the environment, I started a lot of Tomcat processes. Kill a few and restart Tomcat. This time I pulled it up

The error log in catalina.out is as follows:

09-May-2017 10:47:31.668 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/8.5.13
09-May-2017 10:47:31.670 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Mar 27 2017 14:25:04 UTC
09-May-2017 10:47:31.671 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         8.5.13.0
09-May-2017 10:47:31.671 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Linux
09-May-2017 10:47:31.671 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            3.10.0-327.36.3.el7.x86_64
09-May-2017 10:47:31.671 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
09-May-2017 10:47:31.671 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /usr/jdk1.8.0_102/jre
09-May-2017 10:47:31.672 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_102-b14
09-May-2017 10:47:31.672 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
09-May-2017 10:47:31.672 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /home/msuser/apache-tomcat-8.5.13
09-May-2017 10:47:31.672 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /home/msuser/apache-tomcat-8.5.13
09-May-2017 10:47:31.673 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/home/msuser/apache-tomcat-8.5.13/conf/logging.properties
09-May-2017 10:47:31.673 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
09-May-2017 10:47:31.673 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
09-May-2017 10:47:31.673 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
09-May-2017 10:47:31.673 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/home/msuser/apache-tomcat-8.5.13
09-May-2017 10:47:31.673 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/home/msuser/apache-tomcat-8.5.13
09-May-2017 10:47:31.674 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/home/msuser/apache-tomcat-8.5.13/temp
09-May-2017 10:47:31.674 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
09-May-2017 10:47:31.866 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-9090"]
09-May-2017 10:47:31.887 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
09-May-2017 10:47:31.890 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
09-May-2017 10:47:31.893 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
09-May-2017 10:47:31.894 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 795 ms
09-May-2017 10:47:31.925 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service Catalina
09-May-2017 10:47:31.925 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.5.13
09-May-2017 10:47:35.511 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
09-May-2017 10:47:36.136 INFO [localhost-startStop-1] org.springframework.web.context.ContextLoader.initWebApplicationContext Root WebApplicationContext: initialization started
09-May-2017 10:47:36.289 INFO [localhost-startStop-1] org.springframework.web.context.support.XmlWebApplicationContext.prepareRefresh Refreshing Root WebApplicationContext: startup date [Tue May 09 10:47:36 CST 2017]; root of context hierarchy
09-May-2017 10:47:36.361 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/spring-core.xml]
09-May-2017 10:47:36.693 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/registry.xml]
09-May-2017 10:47:36.736 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/application.xml]
09-May-2017 10:47:36.763 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/microservice.xml]
09-May-2017 10:47:36.979 INFO [localhost-startStop-1] org.springframework.beans.factory.config.PropertyPlaceholderConfigurer.loadProperties Loading properties file from class path resource [global.properties]
09-May-2017 10:47:38.380 SEVERE [localhost-startStop-1] org.springframework.web.context.ContextLoader.initWebApplicationContext Context initialization failed
 java.lang.NoClassDefFoundError: GetBooksRequest
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    at java.lang.Class.getDeclaredMethods(Class.java:1975)
    at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:613)
    at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:524)
    at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:510)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:241)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1073)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:512)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:778)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:843)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4745)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5207)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: GetBooksRequest
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)
    ... 30 more

09-May-2017 10:47:38.383 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file
09-May-2017 10:47:39.410 INFO [localhost-startStop-1] org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [1,026] milliseconds.
09-May-2017 10:47:39.410 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
09-May-2017 10:47:39.417 INFO [localhost-startStop-1] org.springframework.web.context.support.XmlWebApplicationContext.doClose Closing Root WebApplicationContext: startup date [Tue May 09 10:47:36 CST 2017]; root of context hierarchy
09-May-2017 10:47:39.430 WARNING [localhost-startStop-1] org.springframework.web.context.support.XmlWebApplicationContext.doClose Exception thrown from LifecycleProcessor on context close
 java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: Root WebApplicationContext: startup date [Tue May 09 10:47:36 CST 2017]; root of context hierarchy
    at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:416)
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:979)
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:938)
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:581)
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:116)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4792)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5429)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:226)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

09-May-2017 10:47:39.443 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [pool-2-thread-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)
09-May-2017 10:47:39.444 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [pool-2-thread-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)
09-May-2017 10:47:39.444 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [nioEventLoopGroup-2-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
 sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
 sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
 sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
 sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
 io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
 io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:732)
 io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:388)
 io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
 io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
 java.lang.Thread.run(Thread.java:745)
09-May-2017 10:47:39.445 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [nioEventLoopGroup-2-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
 sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
 sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
 sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
 sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
 io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
 io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:732)
 io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:388)
 io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
 io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
 java.lang.Thread.run(Thread.java:745)
09-May-2017 10:47:39.446 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [threadDeathWatcher-3-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Thread.sleep(Native Method)
 io.netty.util.ThreadDeathWatcher$Watcher.run(ThreadDeathWatcher.java:152)
 io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
 java.lang.Thread.run(Thread.java:745)
09-May-2017 10:47:39.447 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [nioEventLoopGroup-2-3] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
 sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
 sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
 sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
 sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
 io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
 io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:732)
 io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:388)
 io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
 io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
 java.lang.Thread.run(Thread.java:745)
09-May-2017 10:47:39.448 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [Thread-5] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Object.wait(Native Method)
 java.lang.Object.wait(Object.java:502)
 io.netty.util.concurrent.DefaultPromise.awaitUninterruptibly(DefaultPromise.java:254)
 mousio.client.promises.ResponsePromise.waitForPromiseSuccess(ResponsePromise.java:189)
 mousio.etcd4j.promises.EtcdResponsePromise.get(EtcdResponsePromise.java:58)
 cn.migu.millet.backend.etcd.EtcdWatcher.invoke(EtcdWatcher.java:94)
 cn.migu.millet.backend.etcd.EtcdWatcher.watch(EtcdWatcher.java:118)
 cn.migu.millet.backend.etcd.EtcdWatcher$1.run(EtcdWatcher.java:46)
 java.lang.Thread.run(Thread.java:745)
09-May-2017 10:47:39.448 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [nioEventLoopGroup-2-4] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
 sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
 sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
 sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
 sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
 io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
 io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:732)
 io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:388)
 io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
 io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
 java.lang.Thread.run(Thread.java:745)
09-May-2017 10:47:39.449 SEVERE [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@6ee22153]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@1f0b76b]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
09-May-2017 10:47:39.450 SEVERE [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@6ee22153]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@7035edbb]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
09-May-2017 10:47:39.451 SEVERE [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@6ee22153]) and a value of type [io.netty.util.internal.InternalThreadLocalMap] (value [io.netty.util.internal.InternalThreadLocalMap@6d2ad0f3]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
09-May-2017 10:47:39.462 WARNING [localhost-startStop-1] org.apache.catalina.core.StandardContext.setPath A context path must either be an empty string or start with a '/' and do not end with a '/'. The path [/] does not meet these criteria and has been changed to []
09-May-2017 10:47:39.463 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive /home/msuser/apache-tomcat-8.5.13/webapps/pilingservice.war
09-May-2017 10:47:39.467 INFO [localhost-startStop-1] org.apache.catalina.startup.ExpandWar.expand An expanded directory [/home/msuser/apache-tomcat-8.5.13/webapps/pilingservice] was found with a last modified time that did not match the associated WAR. It will be deleted.
09-May-2017 10:47:43.586 INFO [localhost-startStop-1] org.springframework.web.context.ContextLoader.initWebApplicationContext Root WebApplicationContext: initialization started
09-May-2017 10:47:43.716 INFO [localhost-startStop-1] org.springframework.web.context.support.XmlWebApplicationContext.prepareRefresh Refreshing Root WebApplicationContext: startup date [Tue May 09 10:47:43 CST 2017]; root of context hierarchy
09-May-2017 10:47:43.777 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/spring-core.xml]
09-May-2017 10:47:43.891 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/registry.xml]
09-May-2017 10:47:43.918 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/application.xml]
09-May-2017 10:47:43.937 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/microservice.xml]
09-May-2017 10:47:44.129 INFO [localhost-startStop-1] org.springframework.beans.factory.config.PropertyPlaceholderConfigurer.loadProperties Loading properties file from class path resource [global.properties]
09-May-2017 10:47:44.934 INFO [nioEventLoopGroup-2-4] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [io.netty.handler.codec.http.LastHttpContent$1]. 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 [io.netty.handler.codec.http.LastHttpContent$1]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
    at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1305)
    at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1293)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1158)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)
    at io.netty.handler.codec.http.LastHttpContent.<clinit>(LastHttpContent.java:30)
    at io.netty.handler.codec.http.HttpObjectDecoder.readTrailingHeaders(HttpObjectDecoder.java:677)
    at io.netty.handler.codec.http.HttpObjectDecoder.decode(HttpObjectDecoder.java:370)
    at io.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:180)
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:411)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:248)
    at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:253)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1334)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:926)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:134)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:624)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:559)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:476)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:438)
    at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
    at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
    at java.lang.Thread.run(Thread.java:745)

09-May-2017 10:47:45.331 INFO [localhost-startStop-1] org.springframework.web.context.ContextLoader.initWebApplicationContext Root WebApplicationContext: initialization completed in 1745 ms
09-May-2017 10:47:45.362 INFO [localhost-startStop-1] org.springframework.web.servlet.DispatcherServlet.initServletBean FrameworkServlet 'service-dispatcher': initialization started
09-May-2017 10:47:45.368 INFO [localhost-startStop-1] org.springframework.web.context.support.XmlWebApplicationContext.prepareRefresh Refreshing WebApplicationContext for namespace 'service-dispatcher-servlet': startup date [Tue May 09 10:47:45 CST 2017]; parent: Root WebApplicationContext
09-May-2017 10:47:45.369 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/spring-mvc.xml]
09-May-2017 10:47:45.734 INFO [localhost-startStop-1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.register Mapped "{[/{service}/{method}],methods=[GET || POST]}" onto public void cn.migu.sample.controller.CompoundController.invoke(java.lang.String,java.lang.String,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
09-May-2017 10:47:45.739 INFO [localhost-startStop-1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.register Mapped "{[/],methods=[GET],produces=[application/json;charset=UTF-8]}" onto public java.util.Collection<java.lang.String> cn.migu.sample.controller.StatusController.home()
09-May-2017 10:47:45.739 INFO [localhost-startStop-1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.register Mapped "{[/{service}],methods=[GET],produces=[application/json;charset=UTF-8]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, cn.migu.sample.controller.StatusController$MethodDesc>> cn.migu.sample.controller.StatusController.list(java.lang.String)
09-May-2017 10:47:45.740 INFO [localhost-startStop-1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.register Mapped "{[/status],methods=[GET],produces=[application/json;charset=UTF-8]}" onto public java.lang.String cn.migu.sample.controller.StatusController.status()
09-May-2017 10:47:45.893 INFO [localhost-startStop-1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.initControllerAdviceCache Looking for @ControllerAdvice: WebApplicationContext for namespace 'service-dispatcher-servlet': startup date [Tue May 09 10:47:45 CST 2017]; parent: Root WebApplicationContext
09-May-2017 10:47:45.964 INFO [localhost-startStop-1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.initControllerAdviceCache Looking for @ControllerAdvice: WebApplicationContext for namespace 'service-dispatcher-servlet': startup date [Tue May 09 10:47:45 CST 2017]; parent: Root WebApplicationContext
09-May-2017 10:47:46.076 INFO [localhost-startStop-1] org.springframework.web.servlet.DispatcherServlet.initServletBean FrameworkServlet 'service-dispatcher': initialization completed in 714 ms
09-May-2017 10:47:46.090 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive /home/msuser/apache-tomcat-8.5.13/webapps/pilingservice.war has finished in 6,627 ms
09-May-2017 10:47:46.091 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /home/msuser/apache-tomcat-8.5.13/webapps/docs
09-May-2017 10:47:46.107 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /home/msuser/apache-tomcat-8.5.13/webapps/docs has finished in 16 ms
09-May-2017 10:47:46.108 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /home/msuser/apache-tomcat-8.5.13/webapps/examples
09-May-2017 10:47:46.326 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /home/msuser/apache-tomcat-8.5.13/webapps/examples has finished in 218 ms
09-May-2017 10:47:46.326 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /home/msuser/apache-tomcat-8.5.13/webapps/host-manager
09-May-2017 10:47:46.355 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /home/msuser/apache-tomcat-8.5.13/webapps/host-manager has finished in 29 ms
09-May-2017 10:47:46.355 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /home/msuser/apache-tomcat-8.5.13/webapps/manager
09-May-2017 10:47:46.380 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /home/msuser/apache-tomcat-8.5.13/webapps/manager has finished in 25 ms
09-May-2017 10:47:46.396 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-9090"]
09-May-2017 10:47:46.407 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
09-May-2017 10:47:46.413 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 14519 ms