test/lib/sun/hotspot/WhiteBox.java

rev 59757 : Add whitebox support for deflating idle monitors including ObjectSynchronizer::request_deflate_idle_monitors(); drop ObjectSynchronizer::_is_special_deflation_requested flag, functions and uses; switch to ObjectSynchronizer::request_deflate_idle_monitors() as needed; _last_async_deflation_time_ns should be set at the end of async deflation;

@@ -108,10 +108,12 @@
     return countAliveClasses(name) != 0;
   }
 
   public  native int getSymbolRefcount(String name);
 
+  public native boolean deflateIdleMonitors();
+
   private native boolean isMonitorInflated0(Object obj);
   public         boolean isMonitorInflated(Object obj) {
     Objects.requireNonNull(obj);
     return isMonitorInflated0(obj);
   }