modules/graphics/src/main/java/com/sun/javafx/css/StyleManager.java

rev 6979 : RT-37025: StyleManager failed to remove stylesheet containers that reference children of a parent that is removed from the scene

*** 550,559 ****
--- 550,580 ----
          if (stylesheets != null && !stylesheets.isEmpty()) {
              for (String fname : stylesheets) {
                  stylesheetRemoved(parent, fname);
              }
          }
+ 
+         Iterator<StylesheetContainer> containerIterator = stylesheetContainerMap.values().iterator();
+         while (containerIterator.hasNext()) {
+             StylesheetContainer container = containerIterator.next();
+             container.parentUsers.remove(parent);
+             if (container.parentUsers.list.isEmpty()) {
+ 
+                 containerIterator.remove();
+ 
+                 if (container.selectorPartitioning != null) {
+                     container.selectorPartitioning.reset();
+                 }
+ 
+ 
+                 // clean up image cache by removing images from the cache that
+                 // might have come from this stylesheet
+                 final String fname = container.fname;
+                 cleanUpImageCache(fname);
+             }
+         }
+ 
          // Do not iterate over children since this method will be called on each from Parent#scenesChanged
      }
  
      /**
       * called from Parent's stylesheets property's onChanged method