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https://issues.apache.org/jira/browse/CXF-4278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13269407#comment-13269407
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Freeman Fang commented on CXF-4278:
-----------------------------------
Hi Scott,
Just want to clarify, installing higher version of ehcache won't prevent you to
install lower version of ehcache. Even though you have ehcache bundle from cxf
features, let's say the version is [2.5, ...), you still can install another
ehcache bundle which version range meet the Hibernate requirement, multiple
version of same lib can co-exist in OSGi container is big benefit by OSGi
nature.
Back to this issue, yeah, I think we should remove ehcache bundle from cxf
feature as it's compile time necessary only, we may also need add version range
for the optional import net.sf.ehcache(likely [2.5.0, 3.0.0) in CXF to prevent
it load some incompatible older net.sf.ehcache.
Freeman
> Karaf features.xml for CXF wants to load EhCache for cxf-sts-ws and
> cxf-ws-security
> -----------------------------------------------------------------------------------
>
> Key: CXF-4278
> URL: https://issues.apache.org/jira/browse/CXF-4278
> Project: CXF
> Issue Type: Bug
> Components: OSGi
> Affects Versions: 2.6, 2.6.1
> Environment: Apache Karaf 2.2.6 + Felix OSGi Container
> Reporter: Scott Parkerson
> Assignee: Freeman Fang
> Priority: Minor
>
> According to the [migration
> guide|http://cxf.apache.org/docs/26-migration-guide.html]:
> {quote}
> EhCache is now a compile time dependency of the cxf-rt-ws-security module to
> support caching and replay detection. It can be safely excluded downstream,
> at the expense of weakening the caching support.
> {quote}
> If that is the case, then why force a user to load a specific version of
> EhCache in the features.xml file for CXF? This breaks cases where, for
> instance, a user wants to use an EhCache compatible with old-school Hibernate
> (3.3.2) which requires net.sf.ehcache;version=[1.2.3, 2.0.0).
> Furthermore, it appears that there is no version bounding on the optional
> import of net.sf.ehcache in cxf-ws-security, so theoretically, my
> already-loaded version of EhCache should work just fine with CXF. :D
> Note: Setting this to a minor issue as it can be worked around by installing
> the features with {{--no-clean}} in Karaf and then removing the EhCache
> provided by CXF's features.
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