https://answers.axonivy.com/questions/1461/failed-to-deserialize-ch-ivyteam-ivy-security-internal-jndi-jndiuser<p>Hi everyone, We have an application which uses LDAP users. I have a question regarding to the message in log:</p> <p><strong>Failed to de-serialize java object of class ch.ivyteam.ivy.security.internal.jndi.JndiUser. Object will be null.</strong></p> <p>What does it mean and how can we prevent this issue?</p> <p>Thanks</p> <p>Matej</p>enTue, 08 Sep 2015 11:32:17 -0400https://answers.axonivy.com/questions/1461/failed-to-deserialize-ch-ivyteam-ivy-security-internal-jndi-jndiuser/1462<p>It occurs because when a DataClass holds a reference to a non serializable class. In your case one of your data classes will have an attribute of type <code>ch.ivyteam.ivy.security.IUser</code>.</p> <p>The serialization problem arises as soon as the process is resumed from a persistent state. Basically when you resume a Task with data, that was not fully serializable.</p> <p>You can work around the error by setting the data class attribute which references the non-serizalizable value as not persistent.</p> <p><img alt="alt text" src="http://answers.axonivy.com/upfiles/nonPersistentAttribute.PNG"></p>Reguel WermelingerTue, 08 Sep 2015 11:32:17 -0400https://answers.axonivy.com/questions/1461/failed-to-deserialize-ch-ivyteam-ivy-security-internal-jndi-jndiuser/1462