GraalVM Native Image

Cats Effect 3.3.0 brought support for printing a fiber dump to the standard error stream. This functionality can be triggered using POSIX signals. Unfortunately, due to the sun.misc.Signal API being an unofficial JDK API, in order to achieve maximum compatibility, this functionality was implemented using the java.lang.reflect.Proxy reflective approach.

Luckily, GraalVM Native Image has full support for both Proxy and POSIX signals. Cats Effect jars contain extra metadata that makes building native images seamless, without the need of extra configuration.