[jira] [Resolved] (OWB-768) add support for proxying protected methods in NormalScopedProxyFactory

["Mark Struberg (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OWB-768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Struberg resolved OWB-768.
-------------------------------

    Resolution: Fixed

already implemented
                
> add support for proxying protected methods in NormalScopedProxyFactory 
> -----------------------------------------------------------------------
>
>                 Key: OWB-768
>                 URL: https://issues.apache.org/jira/browse/OWB-768
>             Project: OpenWebBeans
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.2.0
>            Reporter: Mark Struberg
>            Assignee: Mark Struberg
>             Fix For: 1.2.0
>
>
> Our Normalscoping  proxies now roughly look like the following. For a 
> public class User { 
>   public String getName() { return "Hans"; }
> }
> we create a dynamic subclass with ASM:
> public class User$OwbNormalscopeProxy extends User {
>   private Provider<User> owbContextualInstanceProvider; // will be set by the proxy factory
>   public String getName() {
>     return owbContextualInstanceProvider.get().getName();
>   }
> }
> The problem arises when getName() is not public but protected. In this case various access restrictions for protected variables kick in. For more details please read Java Langspec 3.0 §6.6.2 [1]. Especially take note of the second sample in 6.6.2.2.
> There are additional restrictions listed in the JVM spec becaues 2 packages technically are only counted as equals if they get loaded by the same ClassLoader. 
> For those reasons I currently disabled proxying of protected methods for now. The long time solution might be to use reflection to invoke the proxied methods. I will introduce a static method in the NormalScopeProxyFactory which will contain all the necessary handling and can easily be used concurrently by all generated proxies.
> [1] http://docs.oracle.com/javase/specs/jls/se7/html/jls-6.html#jls-6.6.2

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