Classloading synchronization & 277

Stanley M. Ho Stanley.Ho at
Thu May 15 11:44:48 PDT 2008

Hi Andy,

Yes, this issue is on the radar of our classloader re-achitecture team 
(Karen Kinner and Iris Clark are the leads). The current proposed 
solution would require a custom classloader implementation to implement 
a few new methods in order to enable parallel classloading to workaround 
this issue.

In 277, I expect the spec will require the classloaders in the module 
system implementations to support parallel classloading. If an OSGi 
container implements the 277 abstractions, the classloaders it exposes 
through the abstractions must also support parallel classloading.

- Stanley

Andy Piper wrote:
> Hi Stanley
> Apologies if this has been brought up before, I know that Glyn raised 
> something similar a long time ago.
> is scheduled to be fixed in Dolphin. Is this on the radar of your 
> development team? How are you planning to integrate this into 277?
> Current OSGi implementations really need this bug fixed in order to 
> be able to support cycles without deadlocks. I expect that any 
> interoperation with OSGi would also mean that 277 would be reliant on 
> this also.
> Thanks
> andy
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