Tomcat启动报错：Possible root causes include a too low setting for -Xss and illegal cyclic inheritance de...-优快云博客

本文介绍了解决Tomcat启动时出现的注解扫描异常问题，提供了通过配置排除特定jar包或升级Tomcat版本的方法。

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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每增加一个线程（thread)就会立即消耗15M内存，而最佳值应该是128K,默认值好像是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

这个类似出现在bcprov*.jar这个包

所以在tomcat的conf目录里面catalina.properties的文件，

在tomcat.util.scan.DefaultJarScanner.jarsToSkip=里面加上bcprov*.jar过滤

启动不会报错了

或者升级tomcat版本（绝对解决）

参考自：https://blog.youkuaiyun.com/lb89012784/article/details/50820118

转载于:https://www.cnblogs.com/miaoying/p/9475916.html