607             final LinkedHashSet<DataFlavor> flavors = nativeToFlavorLookup(nat);
 608             if (disabledMappingGenerationKeys.contains(nat)) {
 609                 return new ArrayList<>(flavors);
 610             }
 611 
 612             final LinkedHashSet<DataFlavor> flavorsWithSynthesized =
 613                     nativeToFlavorLookup(nat);
 614 
 615             for (DataFlavor df : flavorsWithSynthesized) {
 616                 returnValue.add(df);
 617                 if ("text".equals(df.getPrimaryType())) {
 618                     String baseType = df.mimeType.getBaseType();
 619                     returnValue.addAll(convertMimeTypeToDataFlavors(baseType));
 620                 }
 621             }
 622         }
 623         flavorsForNativeCache.put(nat, returnValue);
 624         return new ArrayList<>(returnValue);
 625     }
 626 

 627     private static Set<DataFlavor> convertMimeTypeToDataFlavors(
 628         final String baseType) {
 629 
 630         final Set<DataFlavor> returnValue = new LinkedHashSet<>();
 631 
 632         String subType = null;
 633 
 634         try {
 635             final MimeType mimeType = new MimeType(baseType);
 636             subType = mimeType.getSubType();
 637         } catch (MimeTypeParseException mtpe) {
 638             // Cannot happen, since we checked all mappings
 639             // on load from flavormap.properties.
 640         }
 641 
 642         if (DataFlavorUtil.doesSubtypeSupportCharset(subType, null)) {
 643             if (TEXT_PLAIN_BASE_TYPE.equals(baseType))
 644             {
 645                 returnValue.add(DataFlavor.stringFlavor);
 646             }

 607             final LinkedHashSet<DataFlavor> flavors = nativeToFlavorLookup(nat);
 608             if (disabledMappingGenerationKeys.contains(nat)) {
 609                 return new ArrayList<>(flavors);
 610             }
 611 
 612             final LinkedHashSet<DataFlavor> flavorsWithSynthesized =
 613                     nativeToFlavorLookup(nat);
 614 
 615             for (DataFlavor df : flavorsWithSynthesized) {
 616                 returnValue.add(df);
 617                 if ("text".equals(df.getPrimaryType())) {
 618                     String baseType = df.mimeType.getBaseType();
 619                     returnValue.addAll(convertMimeTypeToDataFlavors(baseType));
 620                 }
 621             }
 622         }
 623         flavorsForNativeCache.put(nat, returnValue);
 624         return new ArrayList<>(returnValue);
 625     }
 626 
 627     @SuppressWarnings("deprecation")
 628     private static Set<DataFlavor> convertMimeTypeToDataFlavors(
 629         final String baseType) {
 630 
 631         final Set<DataFlavor> returnValue = new LinkedHashSet<>();
 632 
 633         String subType = null;
 634 
 635         try {
 636             final MimeType mimeType = new MimeType(baseType);
 637             subType = mimeType.getSubType();
 638         } catch (MimeTypeParseException mtpe) {
 639             // Cannot happen, since we checked all mappings
 640             // on load from flavormap.properties.
 641         }
 642 
 643         if (DataFlavorUtil.doesSubtypeSupportCharset(subType, null)) {
 644             if (TEXT_PLAIN_BASE_TYPE.equals(baseType))
 645             {
 646                 returnValue.add(DataFlavor.stringFlavor);
 647             }