[jira] [Resolved] (CXF-8009) CXF should not use ClassUtils for cglib checks

["Andriy Redko (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CXF-8009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andriy Redko resolved CXF-8009.
-------------------------------
    Resolution: Fixed

> CXF should not use ClassUtils for cglib checks
> ----------------------------------------------
>
>                 Key: CXF-8009
>                 URL: https://issues.apache.org/jira/browse/CXF-8009
>             Project: CXF
>          Issue Type: Bug
>          Components: JAX-RS
>    Affects Versions: 2.7.18, 3.2.8, 3.3.1
>            Reporter: Attila Király
>            Assignee: Andriy Redko
>            Priority: Major
>             Fix For: 3.2.9, 3.3.2
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> When using lambda to implement a jax-rs {{StreamingOutput}} we get a no message body writer found error.
> However if we use an anonymous class instead of the lambda then it works.
> This happens because CXF uses the spring method {{ClassUtils.isCglibProxyClass()}} for detecting cglib classes. However that method is not strict enough and incorrectly marks every lambda class as cglib as well. This causes CXF to get the superclass which will always be {{Object.class}} for which there is no message body writer.
> According to the [feedback received|https://github.com/spring-projects/spring-framework/issues/22706] on the spring project instead of {{ClassUtils.isCglibProxyClass()}} (which got deprecated) people should use other methods, for example {{AopUtils.isCglibProxy()}} which is more strict.



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