extensionRegistry.findLiteExtensionByNumber( defaultInstance, fieldNumber);
extensionRegistry.findLiteExtensionByNumber( defaultInstance, fieldNumber);
extensionRegistry.findLiteExtensionByNumber( defaultInstance, fieldNumber);
extensionRegistry.findLiteExtensionByNumber( defaultInstance, fieldNumber);
extensionRegistry.findLiteExtensionByNumber( defaultInstance, fieldNumber);
extensionRegistry.findLiteExtensionByNumber( defaultInstance, fieldNumber);