https://bz.apache.org/bugzilla/show_bug.cgi?id=68908
Bug ID: 68908
Summary: Tomcat feints death, there is no ClientPoller thread
in the stack information
Product: Tomcat 9
Version: 9.0.39
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: WebSocket
Assignee: dev@tomcat.apache.org
Reporter: huangzeling8...@dingtalk.com
Target Milestone: -----
springboot Tomcat 9.0.39 feints death, there is no ClientPoller thread in the
stack information,The error is as follows
[http-nio-18080-exec-146] o.s.web.servlet.HandlerExecutionChain :
HandlerInterceptor.afterCompletion threw exception
java.lang.NullPointerException: null
org.springframework.boot.actuate.metrics.web.servlet.LongTaskTimingHandlerInterceptor.stopLongTaskTimers(LongTaskTimingHandlerInterceptor.java:123)
~[spring-boot-actuator-2.3.5.RELEASE.jar!/:2.3.5.RELEASE]
org.springframework.boot.actuate.metrics.web.servlet.LongTaskTimingHandlerInterceptor.afterCompletion(LongTaskTimingHandlerInterceptor.java:79)
~[spring-boot-actuator-2.3.5.RELEASE.jar!/:2.3.5.RELEASE]
Upon checking the stack information, it was found that the thread of
ClientPoller in Tomcat was missing. Tomcat experienced a fake death situation
without any access log. I suspect it may be related to websocket, as a
websocket client disconnected and experienced the following situation
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