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From Kevin Kuo <kvnk...@gmail.com>
Subject Re: [jira] [Updated] (POOL-292) ClassNotFoundException: org.apache.commons.pool2.impl.DefaultEvictionPolicy
Date Tue, 12 May 2015 14:38:33 GMT
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On Tue, May 12, 2015 at 9:58 PM, Phil Steitz (JIRA) <jira@apache.org> wrote:

>
>      [
> https://issues.apache.org/jira/browse/POOL-292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
> ]
>
> Phil Steitz updated POOL-292:
> -----------------------------
>     Fix Version/s: 2.4
>
> > ClassNotFoundException:
> org.apache.commons.pool2.impl.DefaultEvictionPolicy
> >
> ---------------------------------------------------------------------------
> >
> >                 Key: POOL-292
> >                 URL: https://issues.apache.org/jira/browse/POOL-292
> >             Project: Commons Pool
> >          Issue Type: Bug
> >    Affects Versions: 2.3
> >         Environment: Apache Karaf OSGi
> >            Reporter: Narayanan Harihara
> >              Labels: OSGi,, classnotfoundexception
> >             Fix For: 2.4
> >
> >
> > Here is my application structure:
> > myapplication-bundle(uses mybatis) -->  datasource-bundle (uses
> commons-dbcp2) --> commons-pool2 bundle.
> > With this structure, all the datasource API information are hidden from
> my application and only javax.sql.DataSource is exported from the
> datasource-bundle. So I do not have OSGi import package for
> org.apache.commons.pool2.impl in my application.
> > But on version 2.3 of commons-pool2, the method
> org.apache.commons.pool2.impl.BaseGenericObjectPool.setEvictionPolicyClassName
> is using Thread.currentThread().getContextClassLoader() to load
> EvicationPolicy class, which means it is using the class loader of
> myapplication to load org.apache.commons.pool2.impl.DefaultEvictionPolicy
> class. Since I do not have that in myapplication-bundle's OSGi
> Import-Package, I get a ClassNotFound exception.
> > This issue did not happen in commons-pool2 version 2.2 because, it did
> not use the current thread's class loader to instantiate the eviction
> policy. Due to this, I am kinda forced to use 2.2 version in my environment
> and i would like to stay on the latest version due to all the bug fixes
> with concurrency.
> > Any help would be really appreciated.
>
>
>
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>



-- 
Kevin Kuo

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