8289257: Some custom loader tests failed due to symbol refcount not d…

…ecremented

Backport-of: c43bdf716596053ebe473c3b3bd5cf89482b9b01

test/hotspot/jtreg/runtime/cds/appcds/customLoader/test-classes/HelloUnload.java

@@ -86,22 +86,11 @@ public static void main(String args[]) throws Exception {
         ClassUnloadCommon.failIf(!wb.isClassAlive(className), "should be live here");
 
         if (doUnload) {
-            String loaderName = urlClassLoader.getName();
-            int loadedRefcount = wb.getSymbolRefcount(loaderName);
-            System.out.println("Refcount of symbol " + loaderName + " is " + loadedRefcount);
-
             urlClassLoader = null; c = null; o = null;
             ClassUnloadCommon.triggerUnloading();
             System.out.println("Is CustomLoadee alive? " + wb.isClassAlive(className));
             ClassUnloadCommon.failIf(wb.isClassAlive(className), "should have been unloaded");
 
-            int unloadedRefcount = wb.getSymbolRefcount(loaderName);
-            System.out.println("Refcount of symbol " + loaderName + " is " + unloadedRefcount);
-
-            // refcount of a permanent symbol will not be decremented
-            if (loadedRefcount != 65535) {
-                ClassUnloadCommon.failIf(unloadedRefcount != (loadedRefcount - 1), "Refcount must be decremented");
-            }
         }
     }
 }