Problem while converting ANSI to UTF-8

[jiteshks]

I am developing both client and service side of a Rest Web Service.
Client side is a web application that is using Jersey client api to call the service that is written using Spring's support of Rest.
Client is trying to send a file that is written using Window's notepad and saved by selecting ANSI from encoding list box that appears at the time of saving a notepad.
on Service side,I have a command class that has a field of byte[].

This is the code on server side -

@RequestMapping(method = RequestMethod.POST, value = "/request")
	public ModelAndView requestTranslation(
			@ModelAttribute("clientCommand") ClientCommand clientCommand,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
FileOutputStream fos = new FileOutputStream("input.txt") ;

			fos.write(clientCommand.getUploadFile()) ;
			fos.flush();
			fos.close() ;
 
return null ;
}

@InitBinder
	protected void initBinder(HttpServletRequest request,
			ServletRequestDataBinder binder) throws ServletException {
		// to actually be able to convert Multipart instance to byte[] we have
		// to register a custom editor
		// now Spring knows how to handle multipart object and convert them
		binder.registerCustomEditor(byte[].class,
				new ByteArrayMultipartFileEditor());
	}

My web.xml on service side has the filter set as follows -

<filter>
	  	<filter-name>charsetFilter</filter-name>
  		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  		<init-param>
    		<param-name>encoding</param-name>
    		<param-value>UTF-8</param-value>
  		</init-param>
	</filter>
	
	
	<filter-mapping>
  		<filter-name>charsetFilter</filter-name>
  		<url-pattern>/service/request</url-pattern>
  	  		</filter-mapping>

When I check input.txt,one of the characters that belongs to extended ASCII character sets ’ (ASCII value 146) becomes garbled (? or blank square) .

In case it is needed,my client side code is as follows -

protected String forwardToTranslation(@ModelAttribute("testCommand") TestCommand testCommand,HttpServletRequest request,HttpServletResponse httpResponse) throws Exception
	{

byte[] uploadFile = testCommand.getUploadFile() ;
Client client = Client.create();
		
		WebResource service = client.resource(AltCsoUtil.loadProperties().getProperty("requestUrl"));


FormDataMultiPart formData = new FormDataMultiPart() ;
		
		formData.field("sourceLanguage",sourceLanguage) ; 
		
		formData.field("targetLanguage",targetLanguage) ;
		formData.field("inputFormat",inputFormat) ;
		formData.field("tmx",tmx) ;
		
		
		
			
			formData.field("uploadFile", uploadFile, MediaType.MULTIPART_FORM_DATA_TYPE);
		
		formData.field("priority",priority) ;
		formData.field("profile", profile) ;
		formData.field("uploadFileName", uploadFileName) ;
		

ClientResponse response = service.type(MediaType.MULTIPART_FORM_DATA).post(ClientResponse.class,formData);

return "myapp" ;
}

Same file when saved in Notepad using UTF-8 encoding,works absolutely fine without any complaints at all.
Can someone please help?

[jiteshks]

Can someone please respond to this?Since there is very less manipulation going on,I suspect there is some fundamental mistake somewhere.
I can post additional info if needed.