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Recently we faced the issue of flowscope values not being set across the flow, but later after the investigation found that all the flowscope variables should be serialized ( my mistake i did not read the line from the spring webflow documentation – the line “any objects stored in flow scope need to be Serializable”
I feel this is kind of session information, in general we don’t serialize session variable. Just curious why this serialization required for this spring webflow ?
By forcing flow scoped objects to be Serializable, it provides the flexibility to safely store them anywhere – a database, on disk, etc – and then re-store them when returning to whatever flow state you were in. While your particular server/environment might be a single machine, with every HttpSession (the default “backing” for spring web flow state) persisted in memory, others might have clustered/distributed web/app servers.