I accidentally passed a null to setProperty() and got an NPE. Okay. The javadoc says this method relies on Hashtable, which, in turn, is documented to throw an NPE when put() key/value is null. So, since setProperty() bubbles up the exception, I think this method should gain a @throws tag to make the exception explicit.
Worth creating a JIRA for this? (I don't have a JIRA account) Cheers, Paul
