Eclipse, Java, Midi, Linux(Debian) - sequencer issue -

here's problem:

exception in thread "main" org.jfugue.jfugueexception: midi system cannot instantiate sequencer. although error reported jfugue, problem not jfugue itself. find resources using midi on specific system. exception message midisystem.getsequencer() is: null

here's whole code:

    import org.jfugue.*;     import javax.sound.midi.*;      public class helloworld {          public static void main(string[] args){               mididevice.info[] devices = midisystem.getmidideviceinfo();          if (devices.length == 0) {             system.out.println("no midi devices found");         } else {             (mididevice.info dev : devices) {                 system.out.println(dev.getname());             }         }          player player = new player();         player.play("a b c");          system.exit(0);     } } 

and output:

real time sequencer exception in thread "main" org.jfugue.jfugueexception: midi system cannot instantiate sequencer.  although error reported jfugue, problem not jfugue itself.  find resources using midi on specific system.  exception message midisystem.getsequencer() is: null     @ org.jfugue.player.<init>(player.java:82)     @ org.jfugue.player.<init>(player.java:65)     @ helloworld.main(helloworld.java:20) 

i'm running eclipse package apt-get - 'sun-java6-jdk' unpacks jvm directory. use jre1.5 compiling , 1.6 running. use 1.5 compiling because version compatible jfugue4.0.

this might issue though - alsa 'aplay' command not 'play' files. can use vlc media player or timidity command line, , sound. also, speaker-test works. why wouldn't command line 'aplay' work well? symptom of java issue?

edit: aplay work. sorry, did retest.

edit: here result of " cat /dev/sndstat/ "

sound driver:3.8.1a-980706 (alsa v1.0.24 emulation code) kernel: linux sean-debian 3.2.0-4-amd64 #1 smp debian 3.2.68-1+deb7u2 x86_64 config options: 0

installed drivers: type 10: alsa emulation

card config: hda ati sb @ 0xd0400000 irq 16 hda ati hdmi @ 0xd0310000 irq 19

audio devices: not enabled in config

synth devices: not enabled in config

midi devices: not enabled in config

timers: 31: system timer

mixers: not enabled in config

thanks - has been bugging me.