illegalAccessError

I want to build a Sound app, so I found the ripper app.
and tried to take a look. I have had a nagging problem,
that I can't resolve. I have followed the instructions
exaclty as described to run the ripper app and I still
get the exception. Following is a list of what I have:

in ~/j2sdk1.4.2/jre/lib/ext I have placed:
ripper-2003-06-20.jar
tritonus_cdda.jar
tritonus_mp3.jar
tritonus_share.jar
javalayer.jar

read/write/execute permissions are set for all jars.

~/j2sdk_nb/j2sdk1.4.2/jre/lib/i386 I have placed:

liblametritonus.so
libtritonuscdparanoia.so
read/write/execute permissions are set here as well.

I installed LAME 3.96, and cdparanoia alpha 9.8 which
seemd to go fine. (cdparanoia seemed to already be
installed, but I installed the most recent release to
make sure. Here is the stack trace that results from
either play or encode:

[thieldn@localhost thieldn]$ java
org.jsresources.apps.ripper.Ripper $@
java.lang.IllegalAccessError: tried to access field
org.tritonus.share.sampled.convert.TAsynchronousFilteredAudioInputStream.m_circularBuffer
from class
org.tritonus.lowlevel.cdda.cdparanoia.CdparanoiaMidLevel$CddaAudioInputStream
at
org.tritonus.lowlevel.cdda.cdparanoia.CdparanoiaMidLevel$CddaAudioInputStream.execute(CdparanoiaMidLevel.java:308)
at
org.tritonus.share.TCircularBuffer.read(TCircularBuffer.java:134)
at
org.tritonus.share.sampled.convert.TAsynchronousFilteredAudioInputStream.read(TAsynchronousFilteredAudioInputStream.java:189)
at
org.tritonus.share.sampled.convert.TAsynchronousFilteredAudioInputStream.read(TAsynchronousFilteredAudioInputStream.java:175)
at
org.jsresources.apps.ripper.AsynchronousAudioInputStream.run(AsynchronousAudioInputStream.java:89)
at java.lang.Thread.run(Thread.java:534)

all the pieces seem to bee installed correctly and the
pemissions seem to be correct. I'm running out of
ideas. Any suggestions?