This plugin adds a Tomcat valve that will ensure that any data placed in the session (including the Flash scope) is serializable according to the Java Serializable conventions.

• Logs whenever a serialisation error has been detected.
• Optionally throw an exception to present a 500 error during the request.
• Optional exit the VM when a serialization error is detected. This is useful when used in concert with a good set of HTTP based functional tests (eg selenium /Geb)
• Replaces the session contents with the data that has been de/serialized, ensuring a similar process is applied at development as at producton time.

The following configuration options are available, with their defaults

serializableSessions {
   throwExceptionOnFailure = true
   systemExitOnFailure = false
   replaceSession = true
}

throwExceptionOnFailure indicates whether the system should fail the request by throwing an exception, this will generate an http 500 error when a serialization error occurs

systemExitOnFailure indicates that the entire VM should be shut down when serialization occurrs. This is a good way to enforce rapid fixing of serialization errors as they are created.

replaceSession indicates whether the contents of the session should be replaced by the new de/serialized contents.

Update to grails 2.3.

Addition of the replaceSession option and feature.

David Dawson, sponsored by (Simplicity Itself)[www.simplicityitself.com]