[jboss-jira] [JBoss JIRA] Commented: (JBPM-653) make the process parent classloader configurable

[Ernst-Jan van der Laan (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBPM-653?page=comments#action_12363179 ] 
            
Ernst-Jan van der Laan commented on JBPM-653:
---------------------------------------------

Hi,

I created a modified version of jBPM also that caches the process classload as long as there are classes loaded by this classloader. It is using WeakReferences to cache the process class loaders. This can easly be extended/changed to a version using SoftReferences as well.

The reason I created this cache is to enable to store serializable classes used as process instance variables deployed together with the process definition.

By default only the handler classes can be deployed together with the process definition. To get this working I also modified the VariableInstance.getValue method to change the current thread context class loader to the ProcessClassLoader for this variable. The SerializableToByteArrayConverter revert function then uses this classloader to deserialize the class from the process definition database.

If someone is interested in this solution please let me know and I will send the modified files.

> make the process parent classloader configurable
> ------------------------------------------------
>
>                 Key: JBPM-653
>                 URL: http://jira.jboss.com/jira/browse/JBPM-653
>             Project: JBoss jBPM
>          Issue Type: Feature Request
>          Components: Core Engine
>            Reporter: Tom Baeyens
>         Assigned To: Tom Baeyens
>             Fix For:  jBPM jPDL 3.2.1
>
>
> now, always the jBPM classloader is taken as a parent for the process classloaders.  this should be made configurable.  at least one other possibility should be to configure the context classloader.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira