tomcat啟動報錯：
Jul 20, 2018 11:48:37 AM org.apache.catalina.core.ContainerBase addChildInternal
SEVERE: ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/wrs]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1095)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1957)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
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.IllegalStateException: Unable to complete the scan for annotations for web application [/wrs] due to a StackOverflowError. Possible root causes include a too low setting for -Xss and illegal cyclic inheritance dependencies. The class hierarchy being processed was [org.bouncycastle.asn1.ASN1EncodableVector->org.bouncycastle.asn1.DEREncodableVector->org.bouncycastle.asn1.ASN1EncodableVector]
at org.apache.catalina.startup.ContextConfig.checkHandlesTypes(ContextConfig.java:2159)
at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2105)
at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1980)
at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1946)
at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1931)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1330)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:889)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:386)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5479)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 10 more
Jul 20, 2018 11:48:37 AM org.apache.catalina.startup.HostConfig deployWAR
SEVERE: Error deploying web application archive /server/tomcat-pingan-wrs/webapps/wrs.war
java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/wrs]]
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:905)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1095)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1957)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Jul 20, 2018 11:48:37 AM org.apache.catalina.startup.HostConfig deployWAR
問題分析：Caused by: java.lang.IllegalStateException: Unable to complete the scan for annotations for web application [/wrs] due to a StackOverflowErro：報錯為Java虛擬機棧溢出問題；而導致棧溢出的根本原因是由於包含（ASN1EncodableVector）jar包沖突，這種情況是有兩個jar都含有上述相同的類名，且繼承關系剛好相反，故造成tomcat啟動的環問題。
在項目中搜含有 ASN1EncodableVector 的jar包 只留一個 再重新啟動項目試試