META-INF/services files ended up in wrong bundle (jar), missing imports
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Key: AMQ-2010
URL: https://issues.apache.org/activemq/browse/AMQ-2010
Project: ActiveMQ
Issue Type: Bug
Affects Versions: 5.1.0
Environment: Springsource DM 1.0.0.RC2, java jdk (sun) 1.6_07, Linux
32bit
Reporter: Hrvoje Habjanic
Priority: Trivial
Hi!
I'm unable to use namespaces in spring xml files. It just cannot resolve
namespacehttp://activemq.apache.org/schemas/core:
...
[2008-11-21 15:06:59.627] server-dm-7
rk.beans.factory.xml.DefaultBeanDefinitionDocumentReader.unknown D Loading bean
definitions
[2008-11-21 15:06:59.628] server-dm-7
ramework.osgi.extender.internal.support.NamespacePlugins.unknown D Trying to
resolving namespace handler for http://activemq.apache.org/schema/core
[2008-11-21 15:06:59.630] server-dm-7
.app.spring.GenericModuleOsgiBundleXmlApplicationContext.unknown E Pre refresh
error
org.springframework.beans.factory.parsing.BeanDefinitionParsingException:
Configuration problem: Unable to locate Spring NamespaceHandler for XML schema
namespace [http://activemq.apache.org/schema/core]
Offending resource: URL
[bundleentry://89/META-INF/spring/bundle-context-amq.xml]
at
org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:68)
at
org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85)
at
org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:80)
at
org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.error(BeanDefinitionParserDelegate.java:281
...
To make long story short, it seems that in the process of building jar, someone
forgot to move META-INF/services files in separate bundles.
In OSGI enviroment, classpath loader of one bundle can only see files in jars
(bundles) which he has import directive, including local root. In current build
of activemq, META-INF/services files are all stored in META-INF/services dir
under activemq-core bundle.On the other hand, namespace parser is in
xbean.spring bundle (referenced by META-INF/spring.handlers). Because parser is
in separate bundle, it can not "see" META-INF/services directory, and it dies.
Also, import for org.apache.xbean.spring.context.v2 is missing from
activemq-core. Additionally, for bundle loader to scan for spring.schema file,
bundle _must_ import org.springframework.beans.factory.xml, which is also
missing from manifest file. I'm not 100% shure in this, maybe all files from
META-INF/services should be moved from activemq-core to xbaen.spring ...
Anyhow, fix to make it work is to:
- move META-INF/services in propriate bundles
- add following import to activemq-core:
org.springframework.beans.factory.xml;resolution:=optional,
org.apache.xbean.spring.context.v2;resolution:=optional
That's it for now. :-)
H.
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