Brief Update:
I believe I solved this issue by adding the following repository to the pom.xml located at /onebusaway-service-alerts/pom.xml:
<repository>
<id>osgeo</id>
<name>Open Source Geospatial Foundation Repository</name>
</repository>
<repository>
<snapshots>
<enabled>true</enabled>
</snapshots>
<id>opengeo</id>
<name>OpenGeo Maven Repository</name>
</repository>
<repository>
<id>cutr-releases</id>
</repository>
I am now running into a number of issues coming from class org.onebusaway.service_alerts.impl.SituationServiceImpl. I believe these might be related to SIRI dependencies failing to load. A common error generated in the stacktrace:
[ERROR] /Users/lreed3/onebusaway-service-alerts/onebusaway-service-alerts-core/src/main/java/org/onebusaway/service_alerts/impl/SituationServiceImpl.java:[761,9] cannot find symbol
[ERROR] symbol : class SituationAffectedVehicleJourneyBean
There are hundreds of these starting at (line, column) [36,55]:
import org.onebusaway.transit_data.model.service_alerts.SituationAffectedAgencyBean;
and ending with [985,59]:
SituationConditionDetailsBean details = consequence.getConditionDetails();
They all appear to be related to the Situation classes located at org.onebusaway.transit_data.model.service_alerts. Maybe this package is missing?