Problem of isFile on Microsoft Windows Server 2003

Question

Dear all,
Thanx all for your support in case of previous questions...
Right now we are facing issue with isFile method of java.io.File class.....
On windows xp and unix machine it is returning true for files....but on one machine at client side it is returning false...
Please find os and jre details of same machine..
OS - Microsoft Windows Server 2003 ( Enterprise Edition - Service Pack 2 )
Java Version - JRE6 ( SUN MICROSYSTEMS, INC)
Main issue is same is working on other machines....
using filefilter....
it is returning false on .......if(tempFile.isFile())...statement......PLZ help me...is there any OS related dependency....
package com.hth.filter;
import static com.hth.vars.IbankVars.*;
import java.io.File;
import java.io.FilenameFilter;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class FilesFilter implements FilenameFilter {
     private static Pattern p = Pattern.compile(FILES_PATTERN_TO_BE_EXCLUDED);
     private File tempFile=null;
     private static String fileSeparator=null;
     private static String excludeExtensionList="";
     private int corporateId =-1;
     public FilesFilter(int corporateId){
          this.corporateId=corporateId;
     static{
          try{
               fileSeparator=System.getProperty("file.separator");
          }catch(Exception e){
               fileSeparator="\\";
               e.printStackTrace(System.out);
     public boolean accept(File folder, String fileName) {
          // TODO Auto-generated method stub
          Matcher m = p.matcher(fileName);
     if(m.find()){
          return false;
     }else{
          tempFile=new File(folder,fileName);
               if(tempFile.isFile())
                    System.out.println("FilesFilter-fileName:"+fileName+"IS FILE");
                    //if(fileName !=null && fileName.indexOf(UNDERSCORE)!=-1){
                         /*     if(fileName.substring(0,fileName.indexOf(UNDERSCORE)).equalsIgnoreCase(String.valueOf(corporateId)))
                              if(fileName.lastIndexOf(DOT)!=-1)
                                   StringBuffer strFileExt =new StringBuffer(COMMA);
                                   strFileExt.append(fileName.substring(fileName.substring(0,fileName.lastIndexOf(DOT)).length()+1,fileName.length()));
                                   strFileExt.append(COMMA);
                                   if(excludeExtensionList.toLowerCase().indexOf(strFileExt.toString().toLowerCase()) != -1){
                                        //file extenstion is configured in property file for exclusion.Hence return false;
                                        return false;
                                   }else{
                                        //file extenstion is not configured in property file for exclusion.Hence return true;
                                        return true;
                              }else{
                                   return false;
                         /*}else
                              return false;
                    }else{
                         return false;
               }else{
                    System.out.println("FilesFilter-fileName:"+fileName+"IS FOLDER");
                    return false;
     public static void setExcludeExtensionList(String excludeExtensionList) {
          if(excludeExtensionList!=null)
               FilesFilter.excludeExtensionList = COMMA+excludeExtensionList+COMMA;
}

Answer 1

Right now we are facing issue with isFile method of java.io.File class.....
On windows xp and unix machine it is returning true for files....but on one machine at client side it is returning false...So it's a directory not a file.
Next time please use the CODE button above to format your code.