[jboss-dev-forums] [Design the new POJO MicroContainer] - Re: Locks on MainDeployerImpl

[adrian@jboss.org]

"alesj" wrote : "alesj" wrote : I guess if I just write lock the deploy and undeploy lists processing, you should be fine.
  |   | 
  | This is not fully sufficient either,
  | as one could do addDeployment in between the two write locks in process(),
  | and if this new deployment would actually be re-deploy,
  | we would only pick up its deploy part, but not the undeploy part. :-(
  | 

No. The process() uses snapshots of the to(Un)Deploy.
If two threads concurrently do:

add(remove)Deployment()
process()

then they might end up processing each other's stuff but they won't miss one.

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