[infinispan-issues] [JBoss JIRA] (IPROTO-99) Ability to define an empty proto message via Pojo annotations

[Nistor Adrian (Jira)]

    [ https://issues.jboss.org/browse/IPROTO-99?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13760723#comment-13760723 ] 

Nistor Adrian commented on IPROTO-99:
-------------------------------------

I've changed that error into a warning.

> Ability to define an empty proto message via Pojo annotations
> -------------------------------------------------------------
>
>                 Key: IPROTO-99
>                 URL: https://issues.jboss.org/browse/IPROTO-99
>             Project: Infinispan ProtoStream
>          Issue Type: Feature Request
>    Affects Versions: 4.3.0.Alpha7
>            Reporter: Ryan Emerson
>            Assignee: Nistor Adrian
>            Priority: Major
>             Fix For: 4.3.0.Alpha9
>
>
> In some cases it's useful for a empty protobuf message to be sent, for example formalising an implementation type.
> Currently when trying to define an empty proto message by annotating a class with just {{ProtoName}} annotation, the following error is thrown at compile time:
> {code:java}
> Error:(71, 8) java: Class org.infinispan.notifications.cachelistener.cluster.AbstractClusterListenerUtilTest.StringAppender does not have any @ProtoField annotated fields. The class should be either annotated or it should have a custom marshaller.
> {code}
> It's possible to workaround this by simply creating a {{@Protofield}} annotation on a class variable which is never initialised.



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