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Unexpected Exception After Upgrading to EhCache 2.5.7 (Doc ID 2226416.1)

Last updated on OCTOBER 26, 2021

Applies to:

Oracle WebCenter Sites - Version and later
Information in this document applies to any platform.


After EhCache upgrade to 2.5.7, the following error is logged:

[ERROR] [.kernel.Default (self-tuning)'] [fatwire.cs.systemtools.util] Unexpected exception while making CacheManager for url-cache
net.sf.ehcache.CacheException: Another unnamed CacheManager already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following:
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ]
at net.sf.ehcache.CacheManager.assertNoCacheManagerExistsWithSameName(
at net.sf.ehcache.CacheManager.init(
at net.sf.ehcache.CacheManager.(
at com.fatwire.cs.systemtools.util.CacheUtil.getCacheManagerByResource(
at com.fatwire.cs.systemtools.util.CacheUtil.getCacheManager(




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