Am trying to Upload File on server its been uploaded Succesfully but when am trying to download its showing file not found

Below is my code

String strurl = 
"http://10.94.162.15:9080/swmng/FileUploads/Software/Approval/"+filename+"/
FILE_LIST";
System.out.println("strurl is-=------------------------------------"+strurl);
try{
  XMLParser parser = new XMLParser();         
  arrFileName = parser.getAllFileNames(strurl); 

  for(int i=0; i< arrFileName.length; i++)
    {
                        file = arrFileName[i];
                        System.out.println("file is------------------------ 
"+file);
                        filename=filename.replaceAll("%20", "");
                        if(file!=null && !(file.equalsIgnoreCase("")))
                        {
                            flag = true;
                            if(role==0){
                            hyperlinks +="<tr><td align='center'> 
<b>"+count+". </b> <a 

href='http://10.94.162.15:9080/swmng/FileUploads/Software/Approval/"
+filename+"@"+file+"'>"+file+"</a></td><td><a 

onclick=\"deleteFile('http://10.94.162.15:9080/swmng/FileUploads/Software/
Approval/"+filename.replaceAll("%20", "")+"@"+file+"/DELETE_FILE')\" href='#' 
>Delete</a></td></tr>";
                               System.out.println("hyperlinks---------------- 
----"+hyperlinks);
                             }
                            else
                            {
                                hyperlinks +="<tr><td align='center'> 
<b>"+count+". </b> <a 





href='http://10.94.162.15:9080/swmng/FileUploads/Software/Approval/"+
filename+"@"+file+"'>"+file+"</a></td></tr>";
                            }
                            count++;

                        }

                    }


Am passing strurl to method getAllFileNames(strurl)  the code for this method 
is 


public String[] getAllFileNames(String fileName) { 
    String[] arrFilename = null;
    try { 
        System.out.println("inside 
getAllFileNames==============================="+fileName);
                    DocumentBuilderFactory dbf = 
DocumentBuilderFactory.newInstance(); 
                    DocumentBuilder db = dbf.newDocumentBuilder(); 
                    fileName = fileName.replaceAll(" ", "%20");
                    URL url = new URL(fileName);

        String inputLine;
            Document doc = db.parse(url.openStream()); 
            System.out.println("inside getAllFileNames 
url==============================="+url);

                    XPathFactory xpfactory = XPathFactory.newInstance();
                    XPath path = xpfactory.newXPath();

                    int totalActiveNodes = ((Number) 
path.evaluate("count(/root/fileName)", doc, 
XPathConstants.NUMBER)).intValue();
                    arrFilename = new String[totalActiveNodes+1];
                    for (int i = 1; i <= totalActiveNodes; i++)
                    {
                        arrFilename[i] = (path.evaluate("/root/fileName[" + i 
+ "]", doc));
                        System.out.println("arrFilename---------------------- 
------"+arrFilename[i]);
                    }

    } catch (Exception e) { 
        System.out.println(e);`
  At this line Document doc = db.parse(url.openStream()); 

The compiler throwing FileNotFound but at given location my file is been stored. Am giving location to store file is

 //Tomcat//apache-tomcat-8.5.16//webapps//swmng//FileUploads//Software//Approval//'

File is been uploaded at the above location but when trying to download its failing.Please help me in this. I have tried by changing the path of the file which am uploading but still it didn't work out every time am facing only one issue file not found.but if i check manually the file is present in that location.

What exactly i need to do here? The location is correct or do i need to change the location for uploading even? If the location is same how should I place the location of file where its getting uploaded in the place of downloading and how to place as its getting uploading in tomcat directory? so how should i put that location in downloading path?