--- old/test/testlibrary/whitebox/sun/hotspot/WhiteBox.java	2018-07-11 14:06:25.000000000 +0530
+++ new/test/testlibrary/whitebox/sun/hotspot/WhiteBox.java	2018-07-11 14:06:25.000000000 +0530
@@ -238,4 +238,9 @@
 
   // Returns true on linux if library has the noexecstack flag set.
   public native boolean checkLibSpecifiesNoexecstack(String libfilename);
+
+  // Container testing
+  public native boolean isContainerized();
+  public native void printOsInfo();
+
 }