I have two tasks after a parallel gateway, each of the executing a Jasper connector with different jrxml files and the same database configuration. They generate the following exception (complete stack trace at the bottom):
org.bonitasoft.engine.connector.exception.SConnectorException: java.util.concurrent.ExecutionException: org.bonitasoft.engine.connector.exception.SConnectorException: org.bonitasoft.engine.connector.ConnectorException: org.postgresql.util.PSQLException: This connection has been closed.