multithreading - Cannot delete a wav file after it has been opened, java -

i want sound file (temp0x) of wav format edited/deleted after has been opened. i'm using thread play sound, , close streams when done. main thread should delete it, fails so. if not play sound first there no problem deleting it.

this code in playsound thread plays sound:

public void run() {         synchronized(this){         system.out.println("play sound: " + soundfile.getname());          audioformat format;         dataline.info info;          try {             stream = audiosystem.getaudioinputstream(soundfile);             format = stream.getformat();             info = new dataline.info(clip.class, format);             clip = (clip) audiosystem.getline(info);             clip.open(stream);             clip.start();          }catch(exception ex){             ex.printstacktrace();         }          while(clip.getmicrosecondlength() != clip.getmicrosecondposition()){         //waiting sound finished           }          try {             stream.close();         } catch (ioexception e) {             e.printstacktrace();         }         clip.addlinelistener(new linelistener() {             public void update(lineevent mylineevent) {               if (mylineevent.gettype() == lineevent.type.stop)                 clip.close();             }           });         soundfile = null;         clip = null;         stream = null;           notify();     } } 

this code in main thread:

playsound playsound = new playsound(filepath);     thread play = new thread(playsound);     play.start();      synchronized(play){         try{             system.out.println("waiting play complete...");             play.wait();         }catch(interruptedexception e){             e.printstacktrace();         }          system.out.println("play done");     }      if(new file("sounds/custom/temp0x.wav").delete()){         system.out.println("deleted");     } else         system.out.println("cannot delete");   } 

it prints cannot delete. i'v been staring @ hours , googling socks of cannot find solution. can me out?

edit::

if change boolean delete check suggested output (english: no acces since file used other proces):

java.nio.file.filesystemexception: src\opslaan.wav: het proces heeft geen toegang tot het bestand omdat het door een ander proces wordt gebruikt.  @ sun.nio.fs.windowsexception.translatetoioexception(unknown source) @ sun.nio.fs.windowsexception.rethrowasioexception(unknown source) @ sun.nio.fs.windowsexception.rethrowasioexception(unknown source) @ sun.nio.fs.windowsfilesystemprovider.impldelete(unknown source) @ sun.nio.fs.abstractfilesystemprovider.delete(unknown source) @ java.nio.file.files.delete(unknown source) @ main.main(main.java:27) 

edit:: problem seems platform dependent. need solution windows.

this time, little bit different

playsound.java

import java.lang.runnable; import javax.sound.sampled.audioformat; import javax.sound.sampled.*; import java.io.ioexception; import java.io.*;  public class playsound implements runnable {      bufferedinputstream soundfile;     clip clip;     audioinputstream stream;      public playsound(string file) throws exception {         // have create inputstream ourselves         inputstream = new fileinputstream(file);         soundfile = new bufferedinputstream(is);     }      public void run() {         synchronized(this){          audioformat format;         dataline.info info;          try {             // pass stream instead of file             // looks getaudioinputstream messes around             // file             stream = audiosystem.getaudioinputstream(soundfile);             format = stream.getformat();             info = new dataline.info(clip.class, format);             clip = (clip) audiosystem.getline(info);             clip.open(stream);             clip.start();             while(clip.getmicrosecondlength() != clip.getmicrosecondposition()) {}             // can close ourselves             clip.close();             stream.close();             soundfile.close();         }catch(exception ex){             ex.printstacktrace();         }           soundfile = null;         clip = null;         stream = null;          notifyall();       }     } } 

main.java

import java.lang.thread; import java.io.ioexception; import java.io.*; import java.nio.*; import java.nio.file.*;  public class main {      public static void main(string [] arg) throws exception {          string filepath = "sounds/custom/temp0x.wav";         playsound playsound = new playsound(filepath);         thread play = new thread(playsound);         play.start();         try {             play.join();         } catch(exception ex) {           ex.printstacktrace();          }          system.out.println("play done");         path path = filesystems.getdefault().getpath("sounds/custom", "temp0x.wav");          try {            files.delete(path);         } catch (nosuchfileexception x) {            system.err.format("%s: no such" + " file or directory%n", path);         } catch (directorynotemptyexception x) {            system.err.format("%s not empty%n", path);         } catch (ioexception x) {           // file permission problems caught here.           system.err.println(x);         } catch(exception ex) {           ex.printstacktrace();         }     } } 

this time, after execution, file removed (at windows 7).