java - First play of ogg file works, LineUnavailableException on second play -

i'm attempting loop ogg audiofiles in java. i'm using vorbisspi.

i able play file once. when try play file again, or play file,

lineunavailableexception: line format pcm_signed 44100.0 hz, 16 bit, stereo, 4 bytes/frame, little-endian not supported. 

i don't know i'm doing wrong.

method below.

public static void testline(file file) {     try (audioinputstream in = audiosystem.getaudioinputstream(file)) {         audioformat informat = in.getformat();         audioformat outformat = new audioformat(pcm_signed, informat.getsamplerate(),                  16, informat.getchannels(), informat.getchannels() * 2, informat.getsamplerate(), false);         info info = new info(sourcedataline.class, outformat);          sourcedataline line = (sourcedataline) audiosystem.getline(info);         if (line != null) {             line.open(outformat);              floatcontrol volume = (floatcontrol) line.getcontrol(floatcontrol.type.master_gain);              volume.setvalue((float) ambiance.audio.track.default_volume);              // stream             line.start();              byte[] buffer = new byte[65536];        // magical?     // yes: highest number can represented unsigned 16-bit binary number             audioinputstream stream = audiosystem.getaudioinputstream(outformat,in);             (int n = 0; n != -1; n = stream.read(buffer, 0, buffer.length)) {                 line.write(buffer, 0, n);             }              line.drain();             line.stop();             in.close();              retval = true;         }     } catch (unsupportedaudiofileexception|lineunavailableexception|ioexception e) {         joptionpane.showmessagedialog(null, e.getmessage(),                  e.getclass().tostring(), joptionpane.error_message);     }  } 

you need call close() on line when done it.