Re-apply fix for Eclipse/Maven NPE

This is the same fix as https://github.com/OneBusAway/onebusaway-application-modules/commit/04af93bc2168291a34cbfbf5d48b6426d515812c

But was overwritten by this: https://github.com/OneBusAway/onebusaway-application-modules/commit/3d938b3dc82113f171940938fe0ccd869f49354f

This NPE happened on Juno 64-bit on the Mac as well. But no longer.
Merge pull request #49 from paulcwatts/FixMavenNPE

Re-apply fix for Eclipse/Maven NPE