[jboss-dev] [Fwd: RE: JDK 6 Bugs]

[Andrig T Miller]

FYI on the JDK 6 related issues.

-------- Forwarded Message --------

> From: Chan, Sunny <Sunny.Chan at gs.com>
> To: Andrig T Miller <anmiller at redhat.com>
> Subject: RE: JDK 6 Bugs
> Date: Fri, 1 Jun 2007 10:48:58 +0100
> 
> 
> Hi Andrig,
>  
> Thanks for your reply.
>  
> I am just a bit curious: Is there any reason why you need to compile
> JBoss on Java 6? I have downloaded the source package for 4.0.5
> compile with Java 5 and running unit test with this build and I
> have found no problem at all. I did tried to compile that with Java 6
> and found that most of the errors I found are due to the fact that
> JDBC has been upgrade to version 4 which has introduced new methods in
> JDBC interfaces, and JBoss unit test infrastructure that implements
> these JDBC interfaces need to be updated to provide at least a mock
> method for them. 
>  
> In terms of the bug that you mention, I have checked the bug database
> and looks like the behaviour for loading array classes via
> Classloader.loadClass() has been disallowed, and the API has never
> been intended to be used with array syntax,
> see http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4976356. The
> workaround for this is to add to system property
> "sun.lang.ClassLoader.allowArraySyntax=true", which reverts JDK 6 to
> previous behaviour. However I would suggested that for long term
> you should modify JBoss code to use alternative interface to get an
> array class, for example java.lang.reflect.Array.newInstance().
>  
> If I can further assist you on this please do not hesitate to contact
> me.
> 
> 
> Sunny Chan
> Enterprise Java Engineering
> Goldman Sachs International
> 
> Voice: +44 (0)207 774 3695
> Mobile: +44 (0)782 525 6483
> email: sunny.chan at gs.com
> 
> 
> 
> 
>  
> 
> 
> 
>         
>         ______________________________________________________________
>         From: Andrig T Miller [mailto:anmiller at redhat.com] 
>         Sent: Thursday, May 31, 2007 7:26 PM
>         To: Chan, Sunny
>         Subject: JDK 6 Bugs
>         
>         
>         
>         
>         Sunny,
>         
>              I am the VP of Engineering for the JBoss Division, and I
>         can help you out with more details on the JDK 6 issues that we
>         have seen.  The first problem is that we cannot build from
>         source with JDK 6.  I don't have a specific bug for that, as
>         we have not had sufficient time to spend on the problem to
>         open a bug report on it.  The second problem is a class
>         loading regression that affects our code at runtime (built
>         with JDK 5, run on JDK 6), and the following link is the bug
>         id in the Sun database:
>         
>         http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6434149
>         
>         If you could help to push this, that would be great.  I have
>         voted for the bug to be fixed, but it was not fixed in the
>         first update release of JDK 6.
>         
>         Andrig (Andy) Miller
>         VP of Engineering
>         JBoss, a division of Red Hat 

Andrig (Andy) Miller
VP of Engineering
JBoss, a division of Red Hat
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