[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3239) MarkerObject should be serializable when using with swf

[pintail (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33872#action_33872 ] 

pintail commented on HHH-3239:
------------------------------

I encountered the same problem having that exception in my logs.
I placed a breakpoint when the NotSerializableException was thrown. 
I saw in my log another exception, which led me to this post: https://forum.hibernate.org/viewtopic.php?p=2407563

In one of the comments they mentioned to try to make the private default constructor to package protected. I also had a private default constructor. 
According to the documentation: http://docs.jboss.org/hibernate/stable/core/reference/en/html_single/#persistent-classes-pojo-constructor it is _recommended_ to make the default constructor at least package protected. It seems actually _needed_ instead of _recommende_.

This solved the issue for me.

> MarkerObject should be serializable when using with swf
> -------------------------------------------------------
>
>                 Key: HHH-3239
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3239
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.2.6
>         Environment: Hibernate 3.2.6 and Spring Webflow 2.0
>            Reporter: Goran Blankendal
>
> You get a java.io.NotSerializableException: org.hibernate.util.MarkerObject
> when using hibernate in a persistence context in SWF 2
> See http://forum.springframework.org/showthread.php?t=51738 and http://forum.hibernate.org/viewtopic.php?t=985226
> The MarkerObject should be serializable.

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