jpeg2000 RuntimeException

I cropped two full book PDFS on Mac OS X 10.6.3. The cropping seems to have worked fine, but I got a bunch of these stack traces dumped to stderr:

java.lang.RuntimeException: JPeg 2000 Images needs the VM parameter -Dorg.jpedal.jai=true switch turned on
at org.jpedal.parser.PdfStreamDecoder.processImage(Unknown Source)
at org.jpedal.parser.PdfStreamDecoder.processImageXObject(Unknown Source)
at org.jpedal.parser.PdfStreamDecoder.DO(Unknown Source)
at org.jpedal.parser.PdfStreamDecoder.processToken(Unknown Source)
at org.jpedal.parser.PdfStreamDecoder.decodeStreamIntoObjects(Unknown Source)
at org.jpedal.parser.PdfStreamDecoder.decodeStreamIntoObjects(Unknown Source)
at org.jpedal.parser.PdfStreamDecoder.decodePageContent(Unknown Source)
at org.jpedal.PdfDecoder.getPageAsImage(Unknown Source)
at org.jpedal.PdfDecoder.getPageAsImage(Unknown Source)
at at.laborg.briss.Briss$ClusterPagesTask.doInBackground(Briss.java:578)
at at.laborg.briss.Briss$ClusterPagesTask.doInBackground(Briss.java:1)
at javax.swing.SwingWorker$1.call(SwingWorker.java:274)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at javax.swing.SwingWorker.run(SwingWorker.java:313)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:637)