JMX: Tomcat only collecting metrics from one listener at a time about opentelemetry-java-contrib

[breedx-splk]

I would love to see the "Steps to Reproduce" expanded here, because "Configure Tomcat with a HTTP and HTTPS listener" sounds less than trivial. 😅

[per-lind]

Steps to reproduce:
Install tomcat with its default configuration file.
Create a certificate for use with the https listener openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -sha256 -days 365
Add or uncomment the example https listener in server.xml and change the certificate settings
<Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol" maxThreads="150" SSLEnabled="true"> <UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" /> <SSLHostConfig> <Certificate certificateFile="conf/cert.pem" certificateKeyFile="conf/key.pem" /> </SSLHostConfig> </Connector>

Have not tried but I would expect we would run into the same problem if we added 2 http listeners on different ports aswell.

[jefchien]

I think this is the same issue as #1360. It's only keeping the first MBean it gets and dropping the rest.