Migration Guide from v8 to v9

Dropwizard 5

One of the major changes was the update from Dropwizard 4 to 5.

Most notable change is the upgrade to Jetty 12.

See the upgrade notes for more information.

Jetty 12

We upgraded to jetty 12. A major change is that the servlet components aren’t part of the Jetty core anymore. This commons uses the jetty-ee10-servlet components.

Additionally, servlet filter need to be updated to the servlet handler api.

See the migration guide for more insights.

The org.eclipse.jetty.servlets.CrossOriginFilter header can now be accessed through org.sdase.commons.server.cors.CorsHeader.

Weld 6

Weld was upgraded from 5 to 6.

See also the release notes from RC-1 and RC-2

Prometheus

We migrated from Prometheus simpleclient to prometheus-metrics-core.

simpleclient, simpleclient_dropwizard and simpleclient_servlet_jakarta were replaced with prometheus-metrics-core, prometheus-metrics-instrumentation-dropwizard and prometheus-metrics-exporter-servlet-jakarta.

See the official documentation for migrating.

Metrics don't have a closing , any longer.

apache_http_client_request_duration_seconds{manager="HttpClient",method="get",name="myClient",quantile="0.5",} is now: apache_http_client_request_duration_seconds{manager="HttpClient",method="get",name="myClient",quantile="0.5"}

Java

Dropped support for Java 17. The minimal supported version is Java 21 now. Added support for Java 25.