java sound in Linux .

Hello, While i run jdk sound demo or my application, i get the below exception, and i couldn't hear the sound while the sound file is played. javax.sound.sampled.LineUnavailableException : Audio Device Unavailable. But  when i play the sound file individually i can hear the sound. Please let me

java sound in Linux .

Hello, While i run jdk sound demo or my application, i get the below exception, and i couldn't hear the sound while the sound file is played. javax.sound.sampled.LineUnavailableException : Audio Device Unavailable. But  when i play the sound file individually i can hear the sound. Please let me