--add-opens can be used only in java-17

.gitlab-ci.yml

@@ -55,6 +55,8 @@ test:frontend:
   stage: test
   coverage: '/(\d+.\d+) \% covered/'
   before_script:
+    # java.desktop module does not export Sun Graphics implementation for mockito
+    - export MAVEN_OPTS="$MAVEN_OPTS -DargLine=--add-opens=java.desktop/sun.java2d=ALL-UNNAMED"
     - apt-get update
     - DEBIAN_FRONTEND=noninteractive apt-get install -y libxrender1 libxtst6 fontconfig libfreetype6
     - mvn dependency:purge-local-repository -DmanualInclude="lcsb.mapviewer"

pom.xml

@@ -213,7 +213,6 @@
 				<configuration>
 					<useSystemClassLoader>false</useSystemClassLoader>
 					<surefire.rerunFailingTestsCount>4</surefire.rerunFailingTestsCount>
-					<argLine>--add-opens java.desktop/sun.java2d=ALL-UNNAMED</argLine>
 				</configuration>
 			</plugin>
 			<plugin>