--- old/test/lib/sun/hotspot/WhiteBox.java	2019-09-19 13:59:35.268461370 +0200
+++ new/test/lib/sun/hotspot/WhiteBox.java	2019-09-19 13:59:35.140461122 +0200
@@ -538,6 +538,13 @@
 
   // Container testing
   public native boolean isContainerized();
+  public native String cgroupType();
+  public boolean isCgroupsV1() {
+    return "cgroupv1".equals(cgroupType());
+  }
+  public boolean isCgroupsV2() {
+    return "cgroupv2".equals(cgroupType());
+  }
   public native void printOsInfo();
 
   // Decoder