[jboss-user] [jBPM] - Unable to load session snapshot in jbpm 5.3

[Bira Neto]

Bira Neto [https://community.jboss.org/people/biraneto] created the discussion

"Unable to load session snapshot in jbpm 5.3"

To view the discussion, visit: https://community.jboss.org/message/739415#739415

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I've searched the posts and found a few similar problems. I decided to post this anyway for two reasons. 1. The stack trace of the cause wasn't the same. 2. This wasn't happening on version 5.2

I am getting the error
     java.lang.RuntimeException: Unable to load session snapshot
with main cause 
Caused by: java.lang.NullPointerException
     at org.drools.common.Scheduler$ActivationTimerInputMarshaller.deserialize(Scheduler.java:230)
     at org.drools.marshalling.impl.ProtobufInputMarshaller.readTimer(ProtobufInputMarshaller.java:597)
     at org.drools.marshalling.impl.ProtobufInputMarshaller.readSession(ProtobufInputMarshaller.java:292)
     at org.drools.marshalling.impl.ProtobufInputMarshaller.readSession(ProtobufInputMarshaller.java:161)
     at org.drools.marshalling.impl.ProtobufMarshaller.unmarshall(ProtobufMarshaller.java:117)
     at org.drools.persistence.SessionMarshallingHelper.loadSnapshot(SessionMarshallingHelper.java:91)

I'm currently using Postgres.
This happens after loading a knowledge base and executing just one workflow. After that the same session can't be loaded anymore.
Any ideas why this could be happening?
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