[jboss-jira] [JBoss JIRA] (DROOLS-890) Thread deadlock issue in class ProjectClassLoader.java

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved DROOLS-890.
--------------------------------
    Fix Version/s: 6.3.0.Final
       Resolution: Done


I can see how the InternalClassLoader can be accessed without having acquired a lock on the enclosing ProjectClassLoader first and this is indeed wrong. 

I fixed it with this commit https://github.com/droolsjbpm/drools/commit/183518527

> Thread deadlock issue in class ProjectClassLoader.java 
> -------------------------------------------------------
>
>                 Key: DROOLS-890
>                 URL: https://issues.jboss.org/browse/DROOLS-890
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 6.1.0.Final
>            Reporter: Vivek Hingorani
>            Assignee: Mario Fusco
>             Fix For: 6.3.0.Final
>
>
> In our project , we are using drools6.1.0.Final jars and the rules are deployed in a jar. Another application when trying to use the rules jar is getting thread deadlock problem. Stack trace is 
> at org.drools.core.common.ProjectClassLoader$InternalTypesClassLoader.loadClass(ProjectClassLoader,java284)
> Two threads are in deadlock condition on this thread. I restarted the application and the error is gone but we need to fix this issue so that it is not reproduced later.The class is in drools-core jar



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