java - access denied to access to /etc/hosts -

i can't access hosts file of windows java (just write) :

java.io.filenotfoundexception: c:\windows\system32\drivers\etc\hosts (access denied) @ java.io.fileoutputstream.open(native method) 

when want append text hosts file above error ...

this code :

    bufferedwriter bw = null;     try {         // append mode set here         bw = new bufferedwriter(new filewriter(file,true));         bw.write(text);         bw.newline();         bw.flush();     } catch(filenotfoundexception e) {         e.printstacktrace();      } catch (ioexception ioe) {         ioe.printstacktrace();     } {                       try {         // close file         bw.close();         } catch (ioexception ex) {             logger.getlogger(filewrite.class.getname()).log(level.severe, null, ex);         }     }   } // end test() 

this code work simple files in other location of windows .. (just error on c:\windows\ ...

and : use microsoft manifest set administration access [not work]

set full access hosts file [not work]

please ..

tnx

check if java running administrator (i.e. write new file in same folder). there access problem , solve need understand (user/service of app) , permissions of resource (file) trying access.

here 2 ways how can try , debug it: 1) don't have permissions write file (can read it?) 2) don't have permissions enter folder (can list files in it)