there's a fix and regression test in 2.5 that need to be backported to 2.4.x. The relevant revision is 963:

http://svn.ncsa.uiuc.edu/websvn/diff.php?repname=tupelo&path=%2Ftrunk%2Ftupelo-all%2Ftupelo-core%2Ftupelo-util%2Fsrc%2Fmain%2Fjava%2Forg%2Ftupeloproject%2Futil%2FListTable.java&rev=963