--- old/test/hotspot/jtreg/containers/docker/PrintContainerInfo.java	2019-09-19 13:59:33.361457675 +0200
+++ new/test/hotspot/jtreg/containers/docker/PrintContainerInfo.java	2019-09-19 13:59:33.230457421 +0200
@@ -29,6 +29,11 @@
         System.out.println("PrintContainerInfo: Entering");
         WhiteBox wb = WhiteBox.getWhiteBox();
 
+	String cgVersion = wb.cgroupType();
+	if (cgVersion != null) { // will be null for product builds
+            System.out.println("Detected CGroups version is: " + cgVersion);
+	}
+
         wb.printOsInfo();
     }
 }