Tomcat 启动报错：Possible root causes include a too low setting for -Xss and illegal cyclic inheritance dependencies
错误代码如下：
Caused by: java.lang.IllegalStateException: Unable to complete the scan for annotations for web application [] 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.ASN1Boolean->org.bouncycastle.asn1.DERBoolean->org.bouncycastle.asn1.ASN1Boolean]
at org.apache.catalina.startup.ContextConfig.checkHandlesTypes(ContextConfig.java:2139)
at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2083)
at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:2029)
at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1999)
at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1952)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1156)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:765)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4989)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
... 42 more网上给的答案都是调整 Xss 参数，其实不是正确的做法，
-Xss：每个线程的 Stack 大小，“-Xss 15120”这使得 tomcat 每减少一个线程（thread) 就会立刻耗费 15M 内存，而最佳值应该是 128K, 默认值如同是 512k.
具体报错如下
Caused by: java.lang.IllegalStateException: Unable to complete the scan for annotations for web application [] 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.ASN1EncodableVe
ctor]
因为 tomcat 启动会去扫描 jar 包，看错误信息 org.bouncycastle.asn1.ASN1EncodableVector，是出在这个类
这个相似呈现在 bcprov*.jar 这个包
所以在 tomcat 的 conf 目录外面 catalina.properties 的文件，
在 tomcat.util.scan.DefaultJarScanner.jarsToSkip= 外面加上 bcprov*.jar 过滤
启动不会报错了
或者降级 tomcat 版本（相对解决）
借鉴:https://www.cnblogs.com/miaoy…