--- old/src/share/classes/sun/awt/datatransfer/SunClipboard.java	2014-05-22 19:39:55.000000000 +0400
+++ new/src/share/classes/sun/awt/datatransfer/SunClipboard.java	2014-05-22 19:39:55.000000000 +0400
@@ -40,7 +40,7 @@
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 
-import java.util.Objects;
+import java.util.Arrays;
 import java.util.Set;
 import java.util.HashSet;
 
@@ -74,11 +74,11 @@
     private volatile int numberOfFlavorListeners = 0;
 
     /**
-     * A set of <code>DataFlavor</code>s that is available on
+     * A set of formats that is available on
      * this clipboard. It is used for tracking changes
      * of <code>DataFlavor</code>s available on this clipboard.
      */
-    private volatile Set<DataFlavor> currentDataFlavors;
+    private volatile long[] currentDataFormats;
 
 
     public SunClipboard(String name) {
@@ -358,16 +358,7 @@
         flavorListeners.add(listener);
 
         if (numberOfFlavorListeners++ == 0) {
-            long[] currentFormats = null;
-            try {
-                openClipboard(null);
-                currentFormats = getClipboardFormats();
-            } catch (IllegalStateException exc) {
-            } finally {
-                closeClipboard();
-            }
-            currentDataFlavors = formatArrayAsDataFlavorSet(currentFormats);
-
+            currentDataFormats = getClipboardFormatsOpenClose();
             registerClipboardViewerChecked();
         }
     }
@@ -383,7 +374,7 @@
         }
         if (flavorListeners.remove(listener) && --numberOfFlavorListeners == 0) {
             unregisterClipboardViewerChecked();
-            currentDataFlavors = null;
+            currentDataFormats = null;
         }
     }
 
@@ -417,10 +408,10 @@
      *        this clipboard
      */
     public void checkChange(long[] formats) {
-        Set<DataFlavor> prevDataFlavors = currentDataFlavors;
-        currentDataFlavors = formatArrayAsDataFlavorSet(formats);
+        long[] prevDataFlavors = currentDataFormats;
+        currentDataFormats = formats;
 
-        if (Objects.equals(prevDataFlavors, currentDataFlavors)) {
+        if (Arrays.equals(prevDataFlavors, currentDataFormats)) {
             // we've been able to successfully get available on the clipboard
             // DataFlavors this and previous time and they are coincident;
             // don't notify