Line 107 of net.didion.jwnl.dictionary.morph.DefaultMorphologicalProcess in lookupNextBaseForm function.
if (derivation.equals("") || derivation == null) {
return null;
}
Should become:
if (derivation == null || derivation.equals("")) {
return null;
}
This will prevent any inadvertent NullPointerExceptions from being thrown.
SVN checkout, rev 41.