I just updated the libgd LWJGL backend to use the latest LWJGL release, 2.9. You can read about it in this thread over at the LWJGL Forums.
Two issues this release fixes are a fix for OpenAL stereo source playback and compatibility with Java 7 on Mac OS X.
Please give it a spin and report any issues you have, Nate and I are already testing it out on all three desktop OSs.
Thanks go to team LWJGL!