https://bz.apache.org/bugzilla/show_bug.cgi?id=65525
Bug ID: 65525
Summary: Exception in thread "http-nio-8080-ClientPoller"
java.lang.NullPointerException
Product: Tomcat 9
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: critical
Priority: P2
Component: WebSocket
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: -----
I have a JAVA application running on spring boot 2.3.2 following is the
defination defined in pom
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
from the following link
https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-tomcat/2.3.2.RELEASE
I can see it uses 9.0.x Tomcat
I have started to notice that the application has started to throw following
exception:
Exception in thread "http-nio-8080-ClientPoller" java.lang.NullPointerException
at
org.apache.tomcat.util.net.NioEndpoint$Poller.events(NioEndpoint.java:613)
at
org.apache.tomcat.util.net.NioEndpoint$Poller.run(NioEndpoint.java:729)
at java.base/java.lang.Thread.run(Thread.java:832)
and after this exception all the rest calls get stuck and breaks the
application.
Not sure what is causing it and how to mitigate it.
Getting this error in prod and not sure how to resolve it, any hep is
appreciated.
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