not all vaadin configuration properties are visible in Intellij

[jorgheymans]

For example vaadin.closeIdleSessions is not in the list, and IntelliJ flags it yellow. Whatever magic that makes the other properties appear should be applied to all properties here https://vaadin.com/docs/latest/flow/configuration/properties

[mshabarov]

Changed the label to investigation, because it looks to me more like a bug, but we have to double check what config parameters are missing in Spring-specific configuration class.

[jorgheymans]

DefaultDeploymentConfiguration has a lot of the missing properties, but it also has system properties and servlet init-vars it seems. So annotating it with @ConfigurationProperties may not be desirable.

[jcgueriaud1]

It's related to this issues:

• Add documentation for vaadin properties spring#689
• extend spring-configuration-metadata.json with all supported parameter spring#1036

I think this comment should help to get the context: vaadin/spring#635 (comment)

[jcgueriaud1]

annotating DefaultDeploymentConfiguration with @ConfigurationProperties may not be desirable.

DefaultDeploymentConfiguration is in Flow and Flow does not depend on Spring. That's the reason it's not possible to annotate it.

[jorgheymans]

Sure, but technicalities aside, when a developer does ctrl-tab after vaadin. in application.yml, she or he can reasonably expect that all possible properties are listed.