out of memory error during northbound integration tests

13:17:55.427 [System Bundle Shutdown] ERROR o.o.c.s.i.internal.ReadService - Received a pluginReader without any protocolPluginType provided
13:17:55.430 [System Bundle Shutdown] ERROR o.o.c.s.i.i.FlowProgrammerService - Received a pluginFlowProgrammer without any protocolPluginType provided
GossipRouter started at Wed Jul 03 13:17:55 CDT 2013
Listening on port 12001 bound on address 0.0.0.0/0.0.0.0
Backlog is 1000, linger timeout is 2000, and read timeout is 0
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "Gogo shell"
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "org.opendaylight.controller.logging.bridge.internal.LogListenerImpl@3a84e994"
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "Timer-5,ISPN,rorschach-40550"

I'm attaching a bit more logging information in case somebody else will understand this a bit better. Otherwise, I'll try to dig into it a bit later and I can run things with -DskipTests in the meantime which seems to work.