net.sf.hibernate.LazyInitializationException : cannot access loading collection

Bamboo occasionally fails with the exception below

net.sf.hibernate.LazyInitializationException: cannot access loading collection
at net.sf.hibernate.collection.PersistentCollection.initialize(PersistentCollection.java:191)
at net.sf.hibernate.collection.PersistentCollection.read(PersistentCollection.java:71)
at net.sf.hibernate.collection.Set.isEmpty(Set.java:114)
at com.atlassian.bamboo.autofavourite.AutoFavouriteBuildCompleteAction.run(AutoFavouriteBuildCompleteAction.java:46)
at sun.reflect.GeneratedMethodAccessor434.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:304)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at org.springframework.orm.hibernate.HibernateInterceptor.invoke(HibernateInterceptor.java:117)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.orm.hibernate.HibernateInterceptor.invoke(HibernateInterceptor.java:117)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy46.run(Unknown Source)
at com.atlassian.bamboo.v2.build.events.PostBuildCompletedEventListener.performCustomBuildCompleteAction(PostBuildCompletedEventListener.java:68)
at com.atlassian.bamboo.v2.build.events.PostBuildCompletedEventListener.handleEvent(PostBuildCompletedEventListener.java:41)
at com.atlassian.event.DefaultEventManager$2.run(DefaultEventManager.java:202)
at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
at com.atlassian.bamboo.build.pipeline.concurrent.NamedThreadFactory$1.run(NamedThreadFactory.java:32)
at edu.emory.mathcs.backport.java.util.concurrent.helpers.ThreadHelpers$1.run(ThreadHelpers.java:34)
at java.lang.Thread.run(Thread.java:595)