[PATCH] Add Java 17 alpine (jenkinsci#252)

Co-authored-by: Tim Jacomb <[email protected]>

jenkins-agent

@@ -118,5 +118,18 @@ else
 	#TODO: Handle the case when the command-line and Environment variable contain different values.
 	#It is fine it blows up for now since it should lead to an error anyway.
 
-	exec $JAVA_BIN $JAVA_OPTS -cp /usr/share/jenkins/agent.jar hudson.remoting.jnlp.Main -headless $TUNNEL $URL $WORKDIR $WEB_SOCKET $DIRECT $PROTOCOLS $INSTANCE_IDENTITY $OPT_JENKINS_SECRET $OPT_JENKINS_AGENT_NAME "$@"
+        FUTURE_OPTS=""
+        if [ "$JENKINS_ENABLE_FUTURE_JAVA" ] ; then
+                FUTURE_OPTS="--add-opens java.base/java.lang=ALL-UNNAMED
+                        --add-opens java.base/java.io=ALL-UNNAMED
+                        --add-opens java.base/java.util=ALL-UNNAMED
+                        --add-opens java.base/java.util.concurrent=ALL-UNNAMED
+                        --add-opens java.base/java.lang.reflect=ALL-UNNAMED
+                        --add-opens java.base/java.text=ALL-UNNAMED
+                        --add-opens java.desktop/java.awt.font=ALL-UNNAMED
+                "
+        fi
+
+        exec $JAVA_BIN ${FUTURE_OPTS} $JAVA_OPTS -cp /usr/share/jenkins/agent.jar hudson.remoting.jnlp.Main -headless $TUNNEL $URL $WORKDIR $WEB_SOCKET $DIRECT $PROTOCOLS $INSTANCE_IDENTITY $OPT_JENKINS_SECRET $OPT_JENKINS_AGENT_NAME "$@"
+
 fi