(Almost) Give up with headless=true

Dockerfile

@@ -1,8 +1,6 @@
 FROM maven:3.8.1-adoptopenjdk-11
 MAINTAINER Goudham Suresh
 
-CMD ["java", "-Djava.awt.headless=true", "-jar", "/var/lib/jenkins/workspace/app.jar"]
-
 RUN apt-get update && apt-get install -y \
     gpg \
     xvfb

Jenkinsfile

@@ -32,7 +32,7 @@ pipeline {
         stage("Test") {
             steps {
                 wrap([$class: 'Xvfb']) {
-                    sh "mvn test -Djava.awt.headless=true"
+                    sh "mvn test"
                 }
             }
             post {