vertx-metrics

Hot to reproduce the issue

open a browser and navigate to http://localhost:8080/ReadStatus.v1
update vertxVersion in settings.gradle to 3.9.14
refresh teh browser, when the code in ServerMetrics line 76 get executed the thread is locked for ever.

Name		Name	Last commit message	Last commit date
Latest commit History 3 Commits
gradle/wrapper		gradle/wrapper
src/main/java/org/example		src/main/java/org/example
.gitignore		.gitignore
README.md		README.md
build.gradle		build.gradle
gradlew		gradlew
settings.gradle		settings.gradle