[CAMEL-7174] CacheManager should only be shutdown when last endpoint is stopped

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Cannot Reproduce
• Affects Version/s: 2.8.5
• Fix Version/s: 2.18.0
• Component/s: camel-cache, karaf

Environment

ServiceMix 4.4.2

• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: metatech
• Created: 05/Feb/14 15:07
• Updated: 10/Apr/16 14:31
• Resolved: 10/Apr/16 06:15

Description

When multiple bundles contain routes with a "cache:" endpoint, if one bundle is stopped, the cache from the other bundle stops working as well.

Solution : in method doStop of class org.apache.camel.component.cache.CacheManagerFactory, remove the call to cacheManager.shutdown().

If really useful, a more elaborate reference counting mechanism could be used to stop the CacheManager when the last endpoint is being stopped

Caused by: java.lang.IllegalStateException: The CacheManager has been shut down. It can no longer be used.
	at net.sf.ehcache.CacheManager.checkStatus(CacheManager.java:1158)
	at net.sf.ehcache.CacheManager.cacheExists(CacheManager.java:1048)
	at org.apache.camel.component.cache.CacheEndpoint.initializeCache(CacheEndpoint.java:104)
	at org.apache.camel.component.cache.CacheProducer.process(CacheProducer.java:56)