--- old/test/lib/sun/hotspot/WhiteBox.java	2020-06-15 17:34:55.000000000 -0400
+++ new/test/lib/sun/hotspot/WhiteBox.java	2020-06-15 17:34:55.000000000 -0400
@@ -110,6 +110,8 @@
 
   public  native int getSymbolRefcount(String name);
 
+  public native boolean deflateIdleMonitors();
+
   private native boolean isMonitorInflated0(Object obj);
   public         boolean isMonitorInflated(Object obj) {
     Objects.requireNonNull(obj);