Problemas com HttpServletResponse response

package action;

import java.io.IOException;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;

import org.directwebremoting.annotations.DataTransferObject;
import org.directwebremoting.annotations.RemoteMethod;
import org.directwebremoting.annotations.RemoteProxy;

@RemoteProxy 
@DataTransferObject
public class EditorAction {

	
	
	 /**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	@RemoteMethod 
	public static void download(String content  )   
    throws IOException {  
  
		String nomeArquivo = "Texto";

        HttpServletResponse  response = null;
		response.setHeader("Content-Disposition", "attachment; filename=" + nomeArquivo + ".doc"); 
		  
		response.setContentType( "application/download" );  
		ServletOutputStream outStream = response.getOutputStream();  
		  
		try {  
		    outStream.print( content );  
		    outStream.flush();  
		} finally {  
		    outStream.close();  
		}  
		
		}  

	
	

	
}

response.setHeader("Content-Disposition", "attachment; filename=" + nomeArquivo + ".doc");