Try to add xvfb to Docker image.

nedtwigg · nedtwigg · commit ae83046a5bee · 2021-07-16T23:01:32.000-07:00
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2.1
 anchors:
   env_gradle: &env_gradle
     docker:
-      - image: cimg/openjdk:11.0
+      - image: cimg/openjdk:11.0-browsers
 
   restore_cache_wrapper: &restore_cache_wrapper
     restore_cache:
