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https://issues.apache.org/jira/browse/POOL-338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16430519#comment-16430519
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Michael C commented on POOL-338:
--------------------------------
Nice touch. Here is the new log that shows two class loaders:
java.lang.IllegalArgumentException: Class
org.apache.commons.pool2.impl.DefaultEvictionPolicy from class loader [Thread
context class loader:
org.eclipse.osgi.internal.framework.ContextFinder@383d49e2] does not implement
org.apache.commons.pool2.impl.EvictionPolicy from class loader
[org.eclipse.osgi.internal.loader.EquinoxClassLoader@d099faf[com.rivetlogic.liferay.store.box:1.0.0(id=42)]]
Since the error came from line 618 _{{if (policy instanceof
EvictionPolicy<?>)}}_, it makes sense to me to use the same class loader of
EvictionPolicy to load _{{policy}}_ in line 608:
{{ final ClassLoader classLoader = EvictionPolicy.class.getClassLoader();}}
It works in my OSGi environment.
> GenericObjectPool constructor throws an exception
> -------------------------------------------------
>
> Key: POOL-338
> URL: https://issues.apache.org/jira/browse/POOL-338
> Project: Commons Pool
> Issue Type: Bug
> Affects Versions: 2.4.2, 2.4.3, 2.5.0
> Environment: Java 8, Liferay DXP (an OSGi environment).
> Reporter: Michael C
> Priority: Major
>
> Version 2.4.3 GenericObjectPool constructor throws this exception:
> {{java.lang.IllegalArgumentException:
> [org.apache.commons.pool2.impl.DefaultEvictionPolicy] does not implement
> EvictionPolicy}}
> {{ at
> org.apache.commons.pool2.impl.BaseGenericObjectPool.setEvictionPolicyClassName(BaseGenericObjectPool.java:618)}}
> {{ at
> org.apache.commons.pool2.impl.GenericObjectPool.setConfig(GenericObjectPool.java:318)}}
> {{ at
> org.apache.commons.pool2.impl.GenericObjectPool.<init>(GenericObjectPool.java:115)}}
> {{ at
> org.apache.commons.pool2.impl.GenericObjectPool.<init>(GenericObjectPool.java:88)}}
>
> Version 2.5.0 throws the same exception. Version 2.4.2 or older's
> setEvictionPolicyClassName method fail silently for the same reason. This
> line in BaseGenericObjectPool evaluates to false for all versions:
> {{ if (policy instanceof EvictionPolicy<?>) {}}
>
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