Crash on startup with Icead Tea Java 7

INFO [main] stendhal.java (89 ) - Setting base at :/stendhal/
INFO [main] stendhal.java (90 ) - Stendhal 0.65
INFO [main] stendhal.java (97 ) - OS: Linux 2.6.22-14-generic amd64
INFO [main] stendhal.java (98 ) - Java-Runtime: IcedTea Runtime Environment 1.7.0-b21 from /usr/lib/jvm/java-7-icedtea/jre
INFO [main] stendhal.java (99 ) - Java-VM: Sun Microsystems Inc. IcedTea 64-Bit Server VM 1.7.0-b21
INFO [main] SoundSystem.java (652 ) - Sound driver: dmix:0 [default](Direct Audio Device: dmix:0, dmix:0, dmix:0)
ERROR [main] AudioClip.java (88 ) - format is not supported(PCM_UNSIGNED 22050.0 Hz, 8 bit, stereo, 2 bytes/frame, )
ERROR [main] AudioClip.java (88 ) - format is not supported(PCM_SIGNED 22050.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian)
ERROR [main] AudioClip.java (88 ) - format is not supported(PCM_SIGNED 11025.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian)
ERROR [main] AudioClip.java (88 ) - format is not supported(PCM_UNSIGNED 22050.0 Hz, 8 bit, stereo, 2 bytes/frame, )
INFO [main] SoundSystem.java (561 ) - Stendhal Soundsystem OK: 131 samples approved / 131 loaded / 65 library sounds
Stendhal Soundsystem OK: 131 samples approved / 131 loaded / 65 library sounds
#
# An unexpected error has been detected by Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00002b1ef5d1ce11, pid=32510, tid=1074792784
#
# Java VM: IcedTea 64-Bit Server VM (1.7.0-b21 mixed mode linux-amd64)
# Problematic frame:
# V [libjvm.so+0x5c9e11]
#
# An error report file with more information is saved as:
# /home/yagisan/stendhal/hs_err_pid32510.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#
Aborted (core dumped)