[OPENJPA-1302] Ehcache product derivation isn't detected when running in WebSphere

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.3, 1.1.0, 1.2.1, 2.0.0-M2
• Fix Version/s: 2.0.0-M3
• Component/s: lib
• Environment: Win XP, WAS V7.0.0.5
• Assignee: Richard G. Curtis
• Reporter: Richard G. Curtis
• Created: 15/Sep/09 18:48
• Updated: 09/Mar/10 18:31
• Resolved: 15/Sep/09 19:45

Description

I tried to configure Ehcache using the instructions documented on their website [1] and found that using the 'ehcache' alias (for openjpa.QueryCache and openjpa.DataCacheManager) does not work in WAS. It does work when running in a JSE environment.

After digging around for awhile I found that when I added ehcache as an application shared library, those classes were not available to the static initializer in org.apache.openjpa.lib.conf.ProductDerivations. Since the ehcache product derivation wasn't found, the 'ehcache' alias wasn't registered.

[1] http://ehcache.org/documentation/openjpa_provider.html