After starting the controller and mininet of10 simulation, I get this error:

1. Link to latest controller: https://jenkins.opendaylight.org/integration/job/integration-project-centralized-integration/lastSuccessfulBuild/artifact/distributions/base/target/distributions-base-0.1.2-SNAPSHOT-osgipackage.zip
2. Start the controller ./run.sh -of13 -Xmx1G
3. Start the mininet: sudo mn --topo tree,2 --controller 'remote,ip=10.125.136.38,port=6633'

2014-05-06 17:41:57.190 PDT [md-sal-binding-notification-1384] ERROR o.o.c.sal.binding.impl.NotifyTask - Unhandled exception thrown by listener: org.opendaylight.controller.sal.compatibility.InventoryAndReadAdapter$$Broker$ListenerInvoker@51f1a91e
java.lang.NullPointerException: Null values are not supported!
at org.infinispan.CacheImpl.assertValueNotNull(CacheImpl.java:193) ~[na:na]
at org.infinispan.CacheImpl.replaceInternal(CacheImpl.java:963) ~[na:na]
at org.infinispan.CacheImpl.replace(CacheImpl.java:957) ~[na:na]
at org.infinispan.CacheImpl.replace(CacheImpl.java:1361) ~[na:na]
at org.infinispan.CacheImpl.replace(CacheImpl.java:250) ~[na:na]
at org.opendaylight.controller.switchmanager.internal.SwitchManager.addNode(SwitchManager.java:1039) ~[na:na]
at org.opendaylight.controller.switchmanager.internal.SwitchManager.updateNode(SwitchManager.java:1137) ~[na:na]
at org.opendaylight.controller.sal.implementation.internal.Inventory.updateNode(Inventory.java:115) ~[na:na]
at org.opendaylight.controller.sal.compatibility.InventoryAndReadAdapter.publishNodeUpdate(InventoryAndReadAdapter.java:1035) ~[na:na]
at org.opendaylight.controller.sal.compatibility.InventoryAndReadAdapter.onNodeUpdated(InventoryAndReadAdapter.java:635) ~[na:na]
at org.opendaylight.controller.sal.compatibility.InventoryAndReadAdapter$$Broker$ListenerInvoker.onNotification(InventoryAndReadAdapter$$Broker$ListenerInvoker.java) ~[na:na]
at org.opendaylight.controller.sal.binding.impl.NotifyTask.call(NotifyTask.java:59) ~[na:na]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) ~[na:1.7.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:166) ~[na:1.7.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) ~[na:1.7.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) ~[na:1.7.0_25]
at java.lang.Thread.run(Thread.java:724) ~[na:1.7.0_25]

2014-05-06 17:41:57.366 PDT [pool-15-thread-1] ERROR o.o.c.m.s.b.i.ForwardedBackwardsCompatibleDataBroker - Tx: DOM-2570 Rollback - Datastore commit failed.
2014-05-06 17:41:57.366 PDT [pool-15-thread-1] ERROR o.o.m.c.t.m.FlowCapableTopologyExporter - Topology export failed for Tx:DOM-2570
2014-05-06 17:41:57.993 PDT [nioEventLoopGroup-12-1] INFO o.o.o.p.i.c.PublishingChannelInitializer - Incoming connection from (remote address): /10.125.136.39:33256 --> :6633
2014-05-06 17:41:57.994 PDT [nioEventLoopGroup-12-1] INFO o.o.o.p.i.c.PublishingChannelInitializer - Incoming connection accepted - building pipeline
2014-05-06 17:41:58.002 PDT [nioEventLoopGroup-12-1] INFO o.o.o.p.i.c.ConnectionAdapterImpl - Hello received / branch
2014-05-06 17:41:58.049 PDT [pool-15-thread-1] INFO o.o.c.m.s.d.b.i.DOMDataBrokerImpl$CommitCoordination - Tx: DOM-2583 Did not pass canCommit phase.
2014-05-06 17:41:58.049 PDT [pool-15-thread-1] ERROR o.o.c.m.s.b.i.ForwardedBackwardsCompatibleDataBroker - Tx: DOM-2583 Rollback - Datastore commit failed.
2014-05-06 17:41:58.049 PDT [pool-15-thread-1] ERROR o.o.m.c.t.m.FlowCapableTopologyExporter - Topology export failed for Tx:DOM-2583

In the topology GUI, I see the following for the first time:

Node ID - Ports
MD_SAL|openflow:1 0
MD_SAL|openflow:3 3
MD_SAL|openflow:2 3

If I try to attempt again, everything works fine, even I could not see any OSGi errors as well.

Thanks,
Madhusudhan