On the Jenkins Configuration,
Performance Signature: Dynatrace Saas/Managed
Dynatrace server configurations
   use Proxy [ X ]
       use proxy server configured in Jenkins

the phrase "use proxy server configured in Jenkins" is misleading or implementation is wrong.

We have a proxy configured under ${JENKINS_URL}/pluginManager/advanced
and Dynatrace server configured under Dynatrace server configurations with "use Proxy" enabled.

"Test Connection" fails

Jenkins pipeline step createDynatraceDeploymentEvent fails.

Restart Jenkins using JAVA_ARGS proxy settings:
-Dhttp.proxyHost=proxy.corp.com -Dhttp.proxyPort=8080 -jar jenkins.war

"Test Connection" fails; stacktrace attached.

Jenkins pipeline step createDynatraceDeploymentEvent SUCCESS!!

One would expect "use proxy server configured in Jenkins" is the one under the "${JENKINS_URL}/pluginManager/advanced" - HTTP Proxy Configuration.

That is the" Jenkins proxy server". Either the wording is wrong or the implementation is wrong. No explanation why the "Test connection fails is all circumstances.