The instruction at “0x03b1c5b5” referenced memory at “0x03c7e618”.

[adamtdisplay]

I am trying to run the simple static sound at http://www.lwjgl.org/documentation_openal_01.php

and i keep getting this message:
Java.exe â€" Application Error
The instruction at “0x03b1c5b5” referenced memory at “0x03c7e618”. The memory could not be “read”. Click on OK to terminate program


and


run:
Exception in thread "main" java.lang.NullPointerException
        at Lesson5.loadALData(Lesson5.java:126)
        at Lesson5.execute(Lesson5.java:222)
        at Lesson5.main(Lesson5.java:261)
Java Result: -1073741819
BUILD SUCCESSFUL (total time: 8 seconds)

please help

Adam