--- a/test/lib/sun/hotspot/WhiteBox.java	Fri May 17 10:48:02 2019 -0400
+++ b/test/lib/sun/hotspot/WhiteBox.java	Fri May 17 08:29:55 2019 -0700
@@ -514,6 +514,7 @@
 
   // Sharing & archiving
   public native String  getDefaultArchivePath();
+  public native boolean cdsMemoryMappingFailed();
   public native boolean isSharingEnabled();
   public native boolean isShared(Object o);
   public native boolean isSharedClass(Class<?> c);
@@ -522,6 +523,7 @@
   public native boolean isJFRIncludedInVmBuild();
   public native boolean isJavaHeapArchiveSupported();
   public native Object  getResolvedReferences(Class<?> c);
+  public native void    linkClass(Class<?> c);
   public native boolean areOpenArchiveHeapObjectsMapped();
 
   // Compiler Directive