java.lang.IllegalArgumentException: null source
at java.util.EventObject.<init>(EventObject.java:56)
at org.springframework.ide.eclipse.core.model.ModelChangeEvent.<init>(ModelChangeEvent.java:43)
at org.springframework.ide.eclipse.core.model.AbstractModel.notifyListeners(AbstractModel.java:43)
at org.springframework.ide.eclipse.beans.core.internal.model.BeansModel$ResourceChangeEventHandler.configAdded(BeansModel.java:598)
at org.springframework.ide.eclipse.beans.core.internal.model.resources.BeansResourceChangeListener$BeansResourceVisitor.resourceAdded(BeansResourceChangeListener.java:97)
at org.springframework.ide.eclipse.core.internal.model.resources.SpringResourceChangeListener$SpringResourceVisitor.visit(SpringResourceChangeListener.java:145)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:69)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
at org.springframework.ide.eclipse.core.internal.model.resources.SpringResourceChangeListener.resourceChanged(SpringResourceChangeListener.java:83)
at org.eclipse.core.internal.events.NotificationManager$1.run(NotificationManager.java:291)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285)
at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149)
at org.eclipse.core.internal.resources.Workspace.broadcastBuildEvent(Workspace.java:364)
at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:146)
at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)