diff -r 295640d080fd javafx-ui-webnode/src/com/sun/webpane/platform/Utilities.java
--- a/javafx-ui-webnode/src/com/sun/webpane/platform/Utilities.java	Tue Sep 06 20:55:14 2011 +0400
+++ b/javafx-ui-webnode/src/com/sun/webpane/platform/Utilities.java	Wed Sep 07 17:49:44 2011 +0400
@@ -2,6 +2,8 @@
 
 import com.sun.webpane.platform.graphics.WCImage;
 import com.sun.webpane.platform.graphics.WCRectangle;
+import java.util.HashMap;
+import java.util.Map;
 
 public abstract class Utilities {
 
@@ -15,20 +17,45 @@
         return instance;
     }
 
-    public abstract String getMIMETypeForExtension(String ext);
-
     public abstract WCImage getIconImage(String iconURL);
 
     public abstract Object toPlatformImage(WCImage image);
-    
+
 
     private static String fwkGetMIMETypeForExtension(String ext) {
-        if (instance == null) {
-            return "";
-        }
-        return instance.getMIMETypeForExtension(ext);
+        return MimeTypeMapHolder.MIME_TYPE_MAP.get(ext);
     }
     
+    private static Map<String,String> createMimeTypeMap() {
+        Map<String, String> mimeTypeMap = new HashMap<String, String>(20);
+        mimeTypeMap.put("txt", "text/plain");
+        mimeTypeMap.put("html", "text/html");
+        mimeTypeMap.put("htm", "text/html");
+        mimeTypeMap.put("css", "text/css");
+        mimeTypeMap.put("xml", "text/xml");
+        mimeTypeMap.put("xsl", "text/xsl");
+        mimeTypeMap.put("js", "application/x-javascript");
+        mimeTypeMap.put("xhtml", "application/xhtml+xml");
+        mimeTypeMap.put("svg", "image/svg+xml");
+        mimeTypeMap.put("svgz", "image/svg+xml");
+        mimeTypeMap.put("gif", "image/gif");
+        mimeTypeMap.put("jpg", "image/jpeg");
+        mimeTypeMap.put("jpeg", "image/jpeg");
+        mimeTypeMap.put("png", "image/png");
+        mimeTypeMap.put("tif", "image/tiff");
+        mimeTypeMap.put("tiff", "image/tiff");
+        mimeTypeMap.put("ico", "image/ico");
+        mimeTypeMap.put("cur", "image/ico");
+        mimeTypeMap.put("bmp", "image/bmp");
+        return mimeTypeMap;
+    }
+
+    // Initialization on Demand Holder
+    private static final class MimeTypeMapHolder {
+        private static final Map<String, String> MIME_TYPE_MAP =
+                createMimeTypeMap();
+    }
+
     private static String[] fwkGetExtensionsForMIMEType(String type) {
         if ("application/x-shockwave-flash".equalsIgnoreCase(type)) {
             return new String[] {"swf", "flv"};
diff -r 295640d080fd webnode-prism/src/com/sun/webpane/sg/prism/UtilitiesImpl.java
--- a/webnode-prism/src/com/sun/webpane/sg/prism/UtilitiesImpl.java	Tue Sep 06 20:55:14 2011 +0400
+++ b/webnode-prism/src/com/sun/webpane/sg/prism/UtilitiesImpl.java	Wed Sep 07 17:49:44 2011 +0400
@@ -2,13 +2,11 @@
 
 import com.sun.webpane.platform.Utilities;
 import com.sun.webpane.platform.graphics.WCImage;
-import java.util.HashMap;
 import java.util.logging.Logger;
 
 public class UtilitiesImpl extends Utilities {
     private final static Logger log =
         Logger.getLogger("com.sun.webpane.sg.prism.UtilitiesImpl");
-    private static HashMap<String, String> mimetypeMap = null;
 
     @Override
     public WCImage getIconImage(String iconURL) {
@@ -17,33 +15,6 @@
     }
 
     @Override
-    public String getMIMETypeForExtension(String ext) {
-        if (mimetypeMap == null) {
-            mimetypeMap = new HashMap<String, String>(20);
-            mimetypeMap.put("txt", "text/plain");
-            mimetypeMap.put("html", "text/html");
-            mimetypeMap.put("htm", "text/html");
-            mimetypeMap.put("css", "text/css");
-            mimetypeMap.put("xml", "text/xml");
-            mimetypeMap.put("xsl", "text/xsl");
-            mimetypeMap.put("js", "application/x-javascript");
-            mimetypeMap.put("xhtml", "application/xhtml+xml");
-            mimetypeMap.put("svg", "image/svg+xml");
-            mimetypeMap.put("svgz", "image/svg+xml");
-            mimetypeMap.put("gif", "image/gif");
-            mimetypeMap.put("jpg", "image/jpeg");
-            mimetypeMap.put("jpeg", "image/jpeg");
-            mimetypeMap.put("png", "image/png");
-            mimetypeMap.put("tif", "image/tiff");
-            mimetypeMap.put("tiff", "image/tiff");
-            mimetypeMap.put("ico", "image/ico");
-            mimetypeMap.put("cur", "image/ico");
-            mimetypeMap.put("bmp", "image/bmp");
-        }
-        return mimetypeMap.get(ext);
-    }
-
-    @Override
     public Object toPlatformImage(WCImage image) {
         return ((WCImageImpl) image).getImage();
     }