Kune

Add a participant to a wave doesn't work, the added participant doesn't see the wave.
The following exception is thrown when the participant is added:

org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: cc.kune.domain.WaveEntity.participants, no session or session was closed
    at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:393)
    at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:385)
    at org.hibernate.collection.internal.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:125)
    at org.hibernate.collection.internal.PersistentSet.size(PersistentSet.java:156)
    at cc.kune.domain.WaveEntity.add(WaveEntity.java:100)
    at cc.kune.core.server.manager.impl.WaveEntityManagerDefault.add(WaveEntityManagerDefault.java:64)
    at com.google.inject.persist.jpa.KuneJpaLocalTxnInterceptor.invoke(KuneJpaLocalTxnInterceptor.java:98)
    at cc.kune.wave.server.search.CustomPerUserWaveViewHandlerImpl.addWaveToUser(CustomPerUserWaveViewHandlerImpl.java:78)
    at cc.kune.wave.server.search.CustomPerUserWaveViewHandlerImpl.access$2(CustomPerUserWaveViewHandlerImpl.java:73)
    at cc.kune.wave.server.search.CustomPerUserWaveViewHandlerImpl$1.call(CustomPerUserWaveViewHandlerImpl.java:129)
    at cc.kune.wave.server.search.CustomPerUserWaveViewHandlerImpl$1.call(CustomPerUserWaveViewHandlerImpl.java:1)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:662)